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ASRock B660M Pro RS Review | 107 Data compared

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  • Avg. price in UK: ~£110
  • Avg. price in US: ~$110
  • CPU socket: LGA 1700
  • Chipset: Intel B660
  • Form factor: microATX

ASRock B660M Pro RS review. Compare 107 technical specifications and user reviews to see how it ranks among motherboards and if it is worth buying.

5.7

Overall score

What it is: An overall evaluation of the motherboard's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best motherboards on the market.

Score components:

90.0%

5.7

Technical Score

10.0%

?

User score

Good
5.7

Technical Score

What it is: An assessment of the motherboard's technical performance, covering key areas such as power delivery, CPU and memory support, expansion, storage, connectivity, cooling, BIOS features, and design.

When it matters: When you want to compare motherboards based on technical performance and available features.

Score components:

19.0%

7.0

Memory

16.0%

7.2

Platform & Features

16.0%

5.8

Storage

15.0%

5.5

Network

13.0%

2.2

Ports & USB

8.0%

4.7

Expansion

8.0%

6.5

Power & Cooling

5.0%

5.8

Audio

Good
?

User score

What it is: A rating that combines user reviews and the total number of reviews received by the motherboard.

When it matters: When you want to understand how a motherboard performs in real-world builds and how reliable it is in terms of stability, BIOS usability, connectivity, and long-term ownership.

Score components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 4.7
    Gaming

    Score components:

    28.0%

    5.2

    VRM phases

    22.0%

    5.5

    N. of M.2 sockets

    18.0%

    4.6

    LAN speed

    17.0%

    6.3

    Maximum RAM speed

    15.0%

    1.0

    N. of PCIe 5.0 x16 slots

  • No image
No image

Best prices in UK

    N/A~ £110

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The ASRock B660M Pro RS is a Micro ATX motherboard designed for 12th, 13th, and 14th Gen Intel Core processors on the LGA1700 socket, featuring an 8-phase power design and support for up to 128GB of dual-channel DDR4 memory at speeds up to 5333MHz (OC). Its primary characteristics include a PCIe 4.0 x16 steel-reinforced slot, dual M.2 storage options (one Hyper M.2 PCIe Gen4x4 and one Ultra M.2 Gen3x4/SATA3), and Intel Gigabit LAN, alongside integrated Nahimic Audio and Polychrome RGB synchronization. Pros include its affordable price point for a modern socket, the inclusion of a front-panel USB 3.2 Gen1 Type-C header, and multiple display outputs (HDMI 2.1 and DisplayPort 1.4) for integrated graphics. However, cons include its lack of integrated Wi-Fi (though an M.2 Key-E slot is available for expansion), the absence of high-speed 10Gbps or 20Gbps USB ports, and a VRM design that may run warm or throttle when paired with high-power i9 processors under heavy load.

Technical Specifications of ASRock B660M Pro RS

Technical Score

What it is: An assessment of the motherboard's technical performance, covering key areas such as power delivery, CPU and memory support, expansion, storage, connectivity, cooling, BIOS features, and design.

When it matters: When you want to compare motherboards based on technical performance and available features.

Score components:

19.0%

?

Memory

16.0%

?

Platform & Features

16.0%

?

Storage

15.0%

?

Network

13.0%

?

Ports & USB

8.0%

?

Expansion

8.0%

?

Power & Cooling

5.0%

?

Audio

5.7
ASRock B660M Pro RS has a technical score of 5.7 points, which is lower than that of 64.1% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the motherboard.

When it matters: When you want to understand how a motherboard performs in real-world builds and how reliable it is in terms of stability, BIOS usability, connectivity, and long-term ownership.

Score components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
What it is: An indicator based on the number of reviews received by the motherboard.
When it matters: When you prefer a motherboard that has already been bought and reviewed by many other users.
1.0
ASRock B660M Pro RS has a popularity of 1 points, which is lower than 77.9% of products in this category.
Ratio quality/price

What it is: An indicator that combines the motherboard's overall rating with its cost.

When it matters: When you are looking for a motherboard that offers a strong balance of features, performance, and price.

Score components:

60.0%

5.7

Overall score

40.0%

9.9

Price

7.0
ASRock B660M Pro RS has a quality-to-price ratio of 7 points, which is lower than 62.2% of products in this category.
Brand name
What it is: The brand that makes the motherboard.
When it matters: When you have a brand preference for support, BIOS, or build quality.

Importance: MEDIUM

Asrock
CPU socket
What it is: The socket type the motherboard is built to support.
When it matters: When you need the motherboard to match a specific CPU.

Importance: HIGH

LGA 1700
ASRock B660M Pro RS uses the LGA 1700 CPU socket, which is more advanced than that of 55% of motherboards and equal to that of 22.7% of motherboards.
CPU platform

Importance: MEDIUM

Intel
Chipset
What it is: The chipset that defines the motherboard platform and many of its features.
When it matters: When you compare platform features, connectivity, and CPU support.

Importance: HIGH

Intel B660
ASRock B660M Pro RS uses the Intel B660 chipset, which is more advanced than that of 57.6% of motherboards and equal to that of 2.8% of motherboards.
Form factor
What it is: The physical size standard of the motherboard, such as ATX or Micro-ATX.
When it matters: When you need the board to fit a specific case size.

Importance: HIGH

microATX
ASRock B660M Pro RS has the microATX form factor, which is less versatile than that of 52.2% of motherboards and equal to that of 32.4% of motherboards.
Show more
DDR memory version
What it is: The RAM generation the motherboard supports, such as DDR4 or DDR5.
When it matters: When you need the board to match a certain memory platform.

Importance: HIGH

Good value: DDR5

DDR4
ASRock B660M Pro RS uses DDR4 memory, which is newer than that of 13.6% of motherboards and equal to that of 51% of motherboards.
Memory slots
What it is: The number of RAM slots on the motherboard.
When it matters: When you want more room for future memory upgrades.

Importance: HIGH

Good value: >=4

4
ASRock B660M Pro RS has 4 Memory slots, which is more than 21.5% of motherboards and equal to 72.5% of motherboards.
Maximum memory capacity
What it is: The largest total amount of RAM the motherboard supports.
When it matters: When you plan a build with very high memory capacity.

Importance: HIGH

Good value: >=128 GB

128 GB
ASRock B660M Pro RS supports up to 128 GB of memory, which is more than 40.4% of motherboards and equal to 32.1% of motherboards.
Memory channels
What it is: The memory channel configuration supported by the motherboard platform.
When it matters: When memory bandwidth matters for your build.

Importance: MEDIUM

2
ASRock B660M Pro RS supports 2 memory channels, which is more than 0.2% of motherboards and equal to 92.5% of motherboards.
Maximum RAM speed
What it is: The highest officially supported memory speed for the motherboard.
When it matters: When you choose RAM and want to know the supported speed ceiling.

Importance: HIGH

Good value: >=6400 MT/s

5,333 MT/s
ASRock B660M Pro RS supports memory speeds up to 5333 MT/s, which is higher than that of 62.9% of motherboards and equal to that of 5.2% of motherboards.
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N. of M.2 sockets
What it is: The number of M.2 slots available on the motherboard.
When it matters: When you want room for more NVMe or M.2 drives.

Importance: HIGH

Good value: >=3

2
ASRock B660M Pro RS has 2 M.2 sockets, which is more than 30.8% of motherboards and equal to 34.6% of motherboards.
M.2 slot interface per slot
What it is: The storage or PCIe interface available for each M.2 slot on the motherboard.
When it matters: When you want to check which drives each M.2 slot can use.

Importance: HIGH

1x PCIe 4.0 x4, 1x PCIe 3.0 x4/SATA
ASRock B660M Pro RS offers 1x PCIe 4.0x4, 1x PCIe 3.0x4/SATA for M.2 slot interfaces, which is faster than that of 53.6% of motherboards and equal to that of 2.4% of motherboards.
N. of SATA 3 connectors
What it is: The number of SATA 6Gb/s connectors on the motherboard.
When it matters: When you plan to connect multiple SATA drives.

Importance: MEDIUM

Good value: >=6

4
ASRock B660M Pro RS has 4 SATA 3 connectors, which is more than 5.6% of motherboards and equal to 46.3% of motherboards.
some SATA ports disabled with certain M.2 use
Supported RAID levels
What it is: The RAID modes officially supported by the motherboard storage platform.
When it matters: When you plan to use multiple drives in a RAID setup.

Importance: MEDIUM

0/1/5/10
ASRock B660M Pro RS supports RAID levels 0/1/5/10, which is broader than 31.8% of motherboards and equal to 68.2% of motherboards.
NVMe RAID support
What it is: Shows whether the board supports RAID configurations that use NVMe SSDs.
When it matters: When you plan to use multiple NVMe drives in RAID.

Importance: LOW

no
ASRock B660M Pro RS does not support NVMe RAID. 59.8% of motherboards support this feature.
Show more
N. of PCIe 5.0 x16 slots
What it is: The number of PCIe 5.0 x16 physical slots on the motherboard.
When it matters: When you want the newest high-bandwidth expansion slots.

Importance: HIGH

Good value: >=1

0
ASRock B660M Pro RS has 0 PCIe 5.0x16 slots, which is equal to 68.5% of motherboards.
N. of PCIe 4.0 x16 slots
What it is: The number of PCIe 4.0 x16 physical slots on the motherboard.
When it matters: When you want more room for modern expansion cards.

Importance: HIGH

Good value: >=1

1
ASRock B660M Pro RS has 1 PCIe 4.0x16 slots, which is more than 55.6% of motherboards and equal to 35.3% of motherboards.
N. of PCIe 3.0 x16 slots
What it is: The number of PCIe 3.0 x16 physical slots on the motherboard.
When it matters: When you need more full-length expansion slots.

Importance: MEDIUM

1
ASRock B660M Pro RS has 1 PCIe 3.0x16 slots, which is more than 40.6% of motherboards and equal to 26.7% of motherboards.
runs at x4 mode
PCIe slot electrical configuration
What it is: The actual lane wiring used by the motherboard PCIe slots.
When it matters: When you need to know how much bandwidth each slot really gets.

Importance: HIGH

x16/x4/x1
ASRock B660M Pro RS uses x16/x4/x1 for PCIe slot electrical configuration, which is more flexible than that of 71.6% of motherboards and equal to that of 7.5% of motherboards.
PCIe bifurcation support
What it is: Shows whether the board can split PCIe lanes across multiple devices from one slot or link.
When it matters: When you plan multi-SSD adapters or more advanced expansion setups.

Importance: MEDIUM

yes
ASRock B660M Pro RS supports PCIe bifurcation. 39.1% of motherboards support this feature.
Show more
Total USB ports (rear I/O)
What it is: The total number of rear USB ports available on the motherboard.
When it matters: When you use many USB devices directly from the back of the PC.

Importance: MEDIUM

Good value: >=8

6
ASRock B660M Pro RS has 6 USB ports (rear I/O), which is fewer than 64.2% of motherboards and equal to 32.9% of motherboards.
Total USB ports (including headers)
What it is: The total number of USB ports supported when rear ports and internal headers are counted together.
When it matters: When you want to know the board's full USB expansion potential.

Importance: MEDIUM

Good value: >=14

13
ASRock B660M Pro RS has 13 USB ports (including headers), which is fewer than 64.7% of motherboards and equal to 7.6% of motherboards.
Total USB-C ports (rear I/O)
What it is: The total number of rear USB-C ports on the motherboard.
When it matters: When you want more USB-C devices connected without adapters.

Importance: MEDIUM

Good value: >=1

0
ASRock B660M Pro RS has 0 USB-C ports (rear I/O), which is fewer than 64.6% of motherboards and equal to 35.4% of motherboards.
Total USB-C ports (including headers)
What it is: The total number of USB-C ports supported when rear ports and internal headers are counted together.
When it matters: When you want more USB-C connectivity across the whole build.

Importance: MEDIUM

Good value: >=2

1
ASRock B660M Pro RS has 1 USB-C ports (including headers), which is more than 30.5% of motherboards and equal to 21.3% of motherboards.
N. of USB 3.2 Gen2x2 ports (USB-C)
What it is: The number of rear USB 3.2 Gen2x2 Type-C ports on the motherboard.
When it matters: When you want very fast USB-C connectivity on the rear I/O.

Importance: HIGH

Good value: >=1

0
ASRock B660M Pro RS has 0 USB 3.2 Gen2x2 ports (USB-C), which is equal to 81.6% of motherboards.
Show more
LAN speed
What it is: The maximum wired Ethernet speed supported by the motherboard.
When it matters: When you want faster wired networking.

Importance: HIGH

Good value: 2.5GbE

1 Gbps
ASRock B660M Pro RS supports LAN speeds up to 1 Gbps, which is lower than that of 50.8% of motherboards and equal to that of 49.1% of motherboards.
LAN controller
What it is: The model of onboard Ethernet controller used by the motherboard.
When it matters: When you compare networking hardware quality and features.

Importance: MEDIUM

?
N. of RJ45 ports
What it is: The number of wired Ethernet ports on the motherboard.
When it matters: When you need one or more wired network connections.

Importance: LOW

1
ASRock B660M Pro RS has 1 RJ45 ports, which is equal to 85.6% of motherboards.
Wi-Fi connectivity
What it is: Shows whether the motherboard includes onboard Wi-Fi hardware instead of requiring a separate adapter.
When it matters: When you want wireless networking without adding an extra card.

Importance: MEDIUM

no
ASRock B660M Pro RS does not support Wi-Fi connectivity. 49.1% of motherboards support this feature.
Wi-Fi version
What it is: The supported Wi-Fi generation, such as Wi-Fi 6 or Wi-Fi 7.
When it matters: When you care about wireless speed and router compatibility.

Importance: MEDIUM

Good value: Wi-Fi 6E (802.11ax)

N/A
Show more
Audio codec
What it is: The onboard audio codec used by the motherboard.
When it matters: When sound quality from the built-in audio matters to you.

Importance: MEDIUM

Realtek ALC897
ASRock B660M Pro RS uses the Realtek ALC897 audio codec, which is less advanced than that of 50.8% of motherboards and equal to that of 29.3% of motherboards.
Audio channels
What it is: The audio channel configuration supported by the onboard sound solution.
When it matters: When you want surround sound from the motherboard audio outputs.

Importance: LOW

Good value: 7.1

7.1
ASRock B660M Pro RS offers 7.1 audio channels, which is more than 4.9% of motherboards and equal to 95.1% of motherboards.
full 7.1 needs front panel audio.
Audio SNR
What it is: The signal-to-noise ratio of the onboard audio solution.
When it matters: When you care about cleaner onboard audio output.

Importance: MEDIUM

Good value: >=120 dB

97 dB
ASRock B660M Pro RS has an audio SNR of 97 dB, which is lower than that of 67.3% of motherboards and equal to that of 16.8% of motherboards.
Headphone amp support
What it is: Shows whether the onboard audio path includes dedicated headphone amplification for harder-to-drive headsets.
When it matters: When you use harder-to-drive headphones from the onboard audio.

Importance: LOW

no
ASRock B660M Pro RS does not support a headphone amp. 63% of motherboards support this feature.
N. of 3.5mm audio jacks
What it is: The number of rear 3.5mm audio jacks on the motherboard.
When it matters: When you want more analog audio connection options.

Importance: LOW

Good value: >=5

3
ASRock B660M Pro RS has 3 3.5mm audio jacks, which is fewer than 50.3% of motherboards and equal to 38.2% of motherboards.
Show more
VRM phases
What it is: The number of power-delivery phases used by the motherboard VRM.
When it matters: When you care about CPU power delivery and overclocking headroom.

Importance: HIGH

Good value: >=12

8
ASRock B660M Pro RS has 8 VRM phases, which is fewer than 71.9% of motherboards and equal to 6.3% of motherboards.
N. of CPU power connectors
What it is: The number of CPU power connectors on the motherboard.
When it matters: When you care about power delivery for higher-end CPUs.

Importance: HIGH

Good value: >=2

1
ASRock B660M Pro RS has 1 CPU power connectors, which is equal to 54.5% of motherboards.
N. of fan headers
What it is: The number of headers available for case or CPU fans.
When it matters: When your build uses several fans.

Importance: MEDIUM

Good value: >=6

5
ASRock B660M Pro RS has 5 fan headers, which is more than 35.8% of motherboards and equal to 14.5% of motherboards.
Pump header
What it is: Shows whether the motherboard includes a dedicated header designed for a liquid-cooling pump.
When it matters: When you build with an AIO or custom liquid cooling loop.

Importance: MEDIUM

yes
ASRock B660M Pro RS has a pump header. 23.1% of motherboards include this feature.
Pump header max current
What it is: The maximum current the dedicated pump header can supply.
When it matters: When you want to make sure the pump header can power your cooling setup.

Importance: LOW

Good value: >=2 A

2 A
ASRock B660M Pro RS supports up to 2 A on the pump header, which is higher than that of 43.3% of motherboards and equal to that of 33.4% of motherboards.
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ASRock B660M Pro RS vs the average motherboard

  • Newer CPU socket
    ASRock B660M Pro RS has newer CPU socket than the average motherboard (LGA 1,700 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.
    What it is: The socket type the motherboard is built to support.
    When it matters: When you need the motherboard to match a specific CPU.

    Importance: HIGH

    ASRock B660M Pro RS has newer CPU socket than the average motherboard (LGA 1,700 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.LGA 1700 vs LGA 1151
  • 1 more PCIe 4.0x16 slots
    ASRock B660M Pro RS has more PCIe 4.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
    What it is: The number of PCIe 4.0 x16 physical slots on the motherboard.
    When it matters: When you want more room for modern expansion cards.

    Importance: HIGH

    Good value: >=1

    ASRock B660M Pro RS has more PCIe 4.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.1 vs 0
  • More flexible PCIe lane configuration
    ASRock B660M Pro RS has more flexible PCIe lane configuration than the average motherboard (x16/x4/x1 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.
    What it is: The actual lane wiring used by the motherboard PCIe slots.
    When it matters: When you need to know how much bandwidth each slot really gets.

    Importance: HIGH

    ASRock B660M Pro RS has more flexible PCIe lane configuration than the average motherboard (x16/x4/x1 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.x16/x4/x1 vs x16/x1
  • 1 more USB4 or Thunderbolt headers
    ASRock B660M Pro RS has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
    What it is: The number of internal USB4 or Thunderbolt headers on the motherboard.
    When it matters: When you plan to add high-speed front USB-C or Thunderbolt connections.

    Importance: MEDIUM

    ASRock B660M Pro RS has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.1 vs 0
  • 1 more ARGB headers
    ASRock B660M Pro RS has more ARGB headers than the average motherboard (3 vs 2). The average motherboard has 2 ARGB header/s.
    What it is: The number of 3-pin addressable RGB headers available on the motherboard.
    When it matters: When you want to connect more ARGB lighting devices.

    Importance: LOW

    Good value: >=2

    ASRock B660M Pro RS has more ARGB headers than the average motherboard (3 vs 2). The average motherboard has 2 ARGB header/s.3 vs 2
  • 61 mm shorter
    ASRock B660M Pro RS is shorter than the average motherboard (244 mm vs 305 mm). The average motherboard height is 305 mm.
    What it is: The physical height of the motherboard.
    When it matters: When you check case fit or compare board size.

    Importance: LOW

    ASRock B660M Pro RS is shorter than the average motherboard (244 mm vs 305 mm). The average motherboard height is 305 mm.244 mm vs 305 mm
  • 15.9% higher maximum RAM speed
    ASRock B660M Pro RS has a higher maximum RAM speed than the average motherboard (5,333 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.
    What it is: The highest officially supported memory speed for the motherboard.
    When it matters: When you choose RAM and want to know the supported speed ceiling.

    Importance: HIGH

    Good value: >=6400 MT/s

    ASRock B660M Pro RS has a higher maximum RAM speed than the average motherboard (5,333 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.5333 MT/s vs 4600 MT/s
  • Newer CPU socket
    ASRock B660M Pro RS has newer CPU socket than the average motherboard (LGA 1,700 vs LGA 1,151). The average motherboard uses LGA 1,151 CPU socket.
  • 15.9% higher maximum RAM speed
    ASRock B660M Pro RS has a higher maximum RAM speed than the average motherboard (5,333 MT/s vs 4,600 MT/s). The average motherboard supports RAM speed of 4,600 MT/s.
  • 1 more PCIe 4.0x16 slots
    ASRock B660M Pro RS has more PCIe 4.0x16 slots than the average motherboard (1 vs 0). The average motherboard has 0 PCIe 4.0x16 slot/s.
  • More flexible PCIe lane configuration
    ASRock B660M Pro RS has more flexible PCIe lane configuration than the average motherboard (x16/x4/x1 vs x16/x1). The average motherboard uses x16/x1 PCIe slot lane configuration.
  • 1 more USB4 or Thunderbolt headers
    ASRock B660M Pro RS has more USB4 or Thunderbolt headers than the average motherboard (1 vs 0). The average motherboard has 0 USB4 or Thunderbolt header/s.
  • 1 more ARGB headers
    ASRock B660M Pro RS has more ARGB headers than the average motherboard (3 vs 2). The average motherboard has 2 ARGB header/s.
  • 61 mm shorter
    ASRock B660M Pro RS is shorter than the average motherboard (244 mm vs 305 mm). The average motherboard height is 305 mm.

Total
Platform & Features
Memory
Expansion
Ports & USB
Power & Cooling
  • More basic motherboard chipset
    ASRock B660M Pro RS has more basic motherboard chipset than the average motherboard (Intel B660 vs Intel B860). The average motherboard uses Intel B860 chipset.
  • No BIOS flashback support
    ASRock B660M Pro RS does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
  • Fewer BIOS update options
    ASRock B660M Pro RS has fewer BIOS update options than the average motherboard (UEFI utility vs UEFI utility, flashback, Windows app). The average motherboard offers UEFI utility, flashback, Windows app BIOS update methods.
  • No automatic overclocking
    ASRock B660M Pro RS does not support automatic overclocking, while the average motherboard does. 74% of motherboards support automatic overclocking.
  • Less versatile form factor
    ASRock B660M Pro RS has less versatile form factor than the average motherboard (microATX vs ATX). The average motherboard comes in ATX form factor.
  • No NVMe RAID support
    ASRock B660M Pro RS does not support NVMe RAID, while the average motherboard does. 59.8% of motherboards support NVMe RAID.
  • Slower M.2 slot interfaces
    ASRock B660M Pro RS has slower M.2 slot interfaces than the average motherboard (1x PCIe 4.0x4, 1x PCIe 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.
  • 2 fewer rear USB ports
    ASRock B660M Pro RS has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.
  • 1 fewer rear USB-C ports
    ASRock B660M Pro RS has fewer rear USB-C ports than the average motherboard (0 vs 1). The average motherboard has 1 rear USB-C port/s.
  • 1 fewer USB 3.2 Gen2 ports
    ASRock B660M Pro RS has fewer USB 3.2 Gen2 ports than the average motherboard (0 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
  • 2 fewer total USB connections
    ASRock B660M Pro RS has fewer total USB connections than the average motherboard (13 vs 15). The average motherboard has 15 total USB connections.
  • 60% lower LAN speed
    ASRock B660M Pro RS has a lower LAN speed than the average motherboard (1 Gbps vs 2.5 Gbps). The average motherboard offers LAN speed of 2.5 Gbps.
  • No Wi-Fi antenna included
    ASRock B660M Pro RS does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
  • 18 dB lower audio SNR
    ASRock B660M Pro RS has a lower audio SNR than the average motherboard (97 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
  • No headphone amp support
    ASRock B660M Pro RS does not support a headphone amp, while the average motherboard does. 63% of motherboards support a headphone amp.
  • More basic audio codec
    ASRock B660M Pro RS has more basic audio codec than the average motherboard (Realtek ALC897 vs Realtek ALC898). The average motherboard uses Realtek ALC898 audio codec.
  • 2 fewer 3.5mm audio jacks
    ASRock B660M Pro RS has fewer 3.5mm audio jacks than the average motherboard (3 vs 5). The average motherboard has 5 3.5mm audio jacks.
  • No optical S/PDIF out
    ASRock B660M Pro RS does not have optical S/PDIF out, while the average motherboard does. 55.7% of motherboards include optical S/PDIF out.
  • Fewer VRM phases
    ASRock B660M Pro RS has fewer VRM phases than the average motherboard (8 vs 10). The average motherboard has 10 VRM phase/s.
  • 60% lower LAN speed
    ASRock B660M Pro RS has a lower LAN speed than the average motherboard (1 Gbps vs 2.5 Gbps). The average motherboard offers LAN speed of 2.5 Gbps.
    What it is: The maximum wired Ethernet speed supported by the motherboard.
    When it matters: When you want faster wired networking.

    Importance: HIGH

    Good value: 2.5GbE

    ASRock B660M Pro RS has a lower LAN speed than the average motherboard (1 Gbps vs 2.5 Gbps). The average motherboard offers LAN speed of 2.5 Gbps.1 Gbps vs 2.5 Gbps
  • More basic motherboard chipset
    ASRock B660M Pro RS has more basic motherboard chipset than the average motherboard (Intel B660 vs Intel B860). The average motherboard uses Intel B860 chipset.
    What it is: The chipset that defines the motherboard platform and many of its features.
    When it matters: When you compare platform features, connectivity, and CPU support.

    Importance: HIGH

    ASRock B660M Pro RS has more basic motherboard chipset than the average motherboard (Intel B660 vs Intel B860). The average motherboard uses Intel B860 chipset.Intel B660 vs Intel B860
  • No NVMe RAID support
    ASRock B660M Pro RS does not support NVMe RAID, while the average motherboard does. 59.8% of motherboards support NVMe RAID.
    What it is: Shows whether the board supports RAID configurations that use NVMe SSDs.
    When it matters: When you plan to use multiple NVMe drives in RAID.

    Importance: LOW

    ASRock B660M Pro RS does not support NVMe RAID, while the average motherboard does. 59.8% of motherboards support NVMe RAID.
  • 2 fewer rear USB ports
    ASRock B660M Pro RS has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.
    What it is: The total number of rear USB ports available on the motherboard.
    When it matters: When you use many USB devices directly from the back of the PC.

    Importance: MEDIUM

    Good value: >=8

    ASRock B660M Pro RS has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.6 vs 8
  • Slower M.2 slot interfaces
    ASRock B660M Pro RS has slower M.2 slot interfaces than the average motherboard (1x PCIe 4.0x4, 1x PCIe 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.
    What it is: The storage or PCIe interface available for each M.2 slot on the motherboard.
    When it matters: When you want to check which drives each M.2 slot can use.

    Importance: HIGH

    ASRock B660M Pro RS has slower M.2 slot interfaces than the average motherboard (1x PCIe 4.0x4, 1x PCIe 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.1x PCIe 4.0x4, 1x PCIe 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4
  • No BIOS flashback support
    ASRock B660M Pro RS does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
    What it is: Shows whether the motherboard can update BIOS without needing a fully installed or supported CPU to boot first.
    When it matters: When you may need to update BIOS before the system can boot.

    Importance: MEDIUM

    ASRock B660M Pro RS does not support BIOS flashback, while the average motherboard does. 50.8% of motherboards support BIOS flashback.
  • 1 fewer rear USB-C ports
    ASRock B660M Pro RS has fewer rear USB-C ports than the average motherboard (0 vs 1). The average motherboard has 1 rear USB-C port/s.
    What it is: The total number of rear USB-C ports on the motherboard.
    When it matters: When you want more USB-C devices connected without adapters.

    Importance: MEDIUM

    Good value: >=1

    ASRock B660M Pro RS has fewer rear USB-C ports than the average motherboard (0 vs 1). The average motherboard has 1 rear USB-C port/s.0 vs 1
  • No Wi-Fi antenna included
    ASRock B660M Pro RS does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
    What it is: Shows whether the external Wi-Fi antenna is included with the motherboard package.
    When it matters: When the board has Wi-Fi and you want it ready to use right away.

    Importance: LOW

    ASRock B660M Pro RS does not include a Wi-Fi antenna, while the average motherboard does. 51.1% of motherboards include a Wi-Fi antenna.
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Third-party reviews

What customers like about ASRock B660M Pro RS?

  • Excellent value for budget-conscious builds, especially when paired with i3 or i5 processors.
  • Includes a front panel USB-C header, which is rare for motherboards in this price range.
  • Features dual M.2 slots, with the primary slot supporting high-speed PCIe 4.0 SSDs.
  • Comes with diagnostic 'Post Status Checker' LEDs to help with troubleshooting during assembly.
  • Includes a dedicated M.2 Key-E slot for adding a Wi-Fi module later.

What customers dislike about ASRock B660M Pro RS?

  • VRM cooling is insufficient for high-power CPUs like the i7 or i9, leading to thermal throttling under heavy loads.
  • Artificial power limits in the BIOS can restrict the performance of even non-K series processors.
  • Rear I/O connectivity is basic, lacking a built-in USB-C port and using older 5Gbps USB standards.
  • Lacks integrated Wi-Fi and Bluetooth out of the box, requiring an additional purchase for wireless connectivity.
  • Limited upgrade path for users wanting to move to flagship-tier 13th or 14th Gen Intel CPUs due to power delivery concerns.

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