OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Motherboards Methodology v1.0
Motherboards Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are evaluated mathematically under Frontumo Motherboards Methodology v1.0 using verified laboratory benchmarks, technical specifications, and authentic consumer ratings with 0% commercial bias.
Explore Motherboards Methodology v1.0

ASRock Z390 Phantom Gaming ITX AC Review | 107 Data compared

Avg. price:~£170CPU socket:LGA 1151Chipset:Intel Z390Form factor:Mini-ITX

ASRock Z390 Phantom Gaming ITX AC Review: Compare 107 technical specifications and user reviews to see how this product ranks in the Motherboards category and whether it is worth buying.

5.7

Overall score

Score
5.7/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 68% of models
Score components

90%

5.4

Technical score

10%

8.7

User score

â–¼Worse than 68% of motherboards
5.4

Technical score

Technical score
5.4/ 10
✕
What it is
An assessment of technical performance for products in the Motherboards category across these key areas: Platform & Features, Memory, Storage, Expansion, Ports & USB, Network, Audio, Power & Cooling.
When it matters
When you want to compare motherboards based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 71% of models
Score components

19%

4.0

Memory

16%

7.5

Platform & Features

16%

6.3

Storage

15%

5.1

Network

13%

3.9

Ports & USB

8%

3.5

Expansion

8%

5.5

Power & Cooling

5%

9.2

Audio

â–¼Worse than 71% of motherboards
8.7

User score

User score
8.7/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–² Better than 78% of models
Score components

70%

9.0

User ratings

30%

7.9

Number of reviews

Based on 410 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
â–²Better than 78% of motherboards
  • asrock-z390-phantom-gaming-itx-ac
  • asrock-z390-phantom-gaming-itx-ac
  • asrock-z390-phantom-gaming-itx-ac
  • asrock-z390-phantom-gaming-itx-ac
  • asrock-z390-phantom-gaming-itx-ac
asrock-z390-phantom-gaming-itx-ac
asrock-z390-phantom-gaming-itx-ac
asrock-z390-phantom-gaming-itx-ac
asrock-z390-phantom-gaming-itx-ac
asrock-z390-phantom-gaming-itx-ac

Best prices

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Best rankings

Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of motherboard ASRock Z390 Phantom Gaming ITX AC

Technical score
Technical score
5.4/ 10
✕
What it is
An assessment of technical performance for products in the Motherboards category across these key areas: Platform & Features, Memory, Storage, Expansion, Ports & USB, Network, Audio, Power & Cooling.
When it matters
When you want to compare motherboards based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 71% of models
Score components:

19%

4.0

Memory

16%

7.5

Platform & Features

16%

6.3

Storage

15%

5.1

Network

13%

3.9

Ports & USB

8%

3.5

Expansion

8%

5.5

Power & Cooling

5%

9.2

Audio

5.4
User score
User score
8.7/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–² Better than 78% of models
Score components

70%

9.0

User ratings

30%

7.9

Number of reviews

Based on 410 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
8.7
Popularity
Popularity
7.9/ 10
✕
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.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 71% of models
Popularity:
ASRock Z390 Phantom Gaming ITX AC has a popularity score of 7.9 points, which is higher than that of 70.8% of products in this category.
7.9
Value for money
Value for money
6.9/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 71% of models
Score components:

60%

5.7

Overall score

40%

9.6

Price

6.9
Brand name
Asrock
CPU socket
LGA 1151
CPU socket
LGA 1151
â–¼ Worse than 70% of models
This motherboard uses the LGA 1151 CPU socket, which is less advanced than that of 70.4% of motherboards and equal to that of 13.8% of motherboards.
CPU platform
Intel
CPU platform
Intel
â–² Better than 32% of models
This motherboard is built for the Intel CPU platform, which is more versatile than that of 31.6% of motherboards and equal to that of 68.4% of motherboards.
Chipset
Intel Z390
Chipset
Intel Z390
â–¼ Worse than 60% of models
This motherboard uses the Intel Z390 chipset, which is less advanced than that of 60% of motherboards and equal to that of 2.1% of motherboards.
Form factor
Mini-ITX
Form factor
Mini-ITX
â–¼ Worse than 85% of models
This motherboard has the Mini-ITX form factor, which is less versatile than that of 84.6% of motherboards and equal to that of 7.3% of motherboards.
Show more
DDR memory version
DDR4
DDR memory version
DDR4
â–¼ Worse than 36% of models
This motherboard uses DDR4 memory, which is newer than that of 13.5% of motherboards and equal to that of 50.8% of motherboards.
Memory slots
2
Memory slots
2
â–¼ Worse than 79% of models
Market range: <2 – >4
This motherboard has 2 Memory slots, which is fewer than 78.6% of motherboards and equal to 21.4% of motherboards.
Maximum memory capacity
64 GB
Maximum memory capacity
64 GB
â–¼ Worse than 63% of models
Market range: <32 GB – >256 GB
This motherboard supports up to 64 GB of memory, which is less than 62.6% of motherboards and equal to 24.3% of motherboards.
requires BIOS update for full capacity
Memory channels
2
Memory channels
2
â–¼ Worse than 7% of models
This motherboard supports 2 memory channels, which is more than 0.2% of motherboards and equal to 92.6% of motherboards.
Maximum RAM speed
2,666 MT/s
Maximum RAM speed
2,666 MT/s
â–¼ Worse than 79% of models
Market range: <2k MT/s – >8k MT/s
This motherboard supports memory speeds up to 2,666 MT/s, which is lower than that of 79% of motherboards and equal to that of 4.6% of motherboards.
Show more
N. of M.2 sockets
2
N. of M.2 sockets
2
â–¼ Worse than 35% of models
Market range: <0 – >4
This motherboard has 2 M.2 sockets, which is more than 30.8% of motherboards and equal to 34.4% of motherboards.
M.2 slot interface per slot
2x PCIe 3.0 x4/SATA
M.2 slot interface per slot
2x PCIe 3.0 x4/SATA
â–¼ Worse than 68% of models
This motherboard offers 2x PCIe 3.0x4/SATA for M.2 slot interfaces, which is slower than that of 67.6% of motherboards and equal to that of 3.8% of motherboards.
N. of SATA 3 connectors
4
N. of SATA 3 connectors
4
â–¼ Worse than 48% of models
Market range: <4 – >8
This motherboard has 4 SATA 3 connectors, which is more than 5.6% of motherboards and equal to 46.2% of motherboards.
Supported RAID levels
0/1/5/10
Supported RAID levels
0/1/5/10
â–² Better than 32% of models
This motherboard supports RAID levels 0/1/5/10, which is broader than 32% of motherboards and equal to 68% of motherboards.
NVMe RAID support
yes
NVMe RAID support
yes
â–² Better than 40% of models
This motherboard supports NVMe RAID. 40.3% of motherboards support this feature.
Show more
N. of PCIe 5.0 x16 slots
0
N. of PCIe 5.0 x16 slots
0
â–¼ Worse than 31% of models
Market range: <0 – >1
This motherboard has 0 PCIe 5.0x16 slots, which is fewer than 31.5% of motherboards and equal to 68.5% of motherboards.
N. of PCIe 4.0 x16 slots
0
N. of PCIe 4.0 x16 slots
0
â–¼ Worse than 45% of models
Market range: <0 – >1
This motherboard has 0 PCIe 4.0x16 slots, which is fewer than 44.5% of motherboards and equal to 55.5% of motherboards.
N. of PCIe 3.0 x16 slots
1
N. of PCIe 3.0 x16 slots
1
â–² Better than 40% of models
Market range: <0 – >3
This motherboard has 1 PCIe 3.0x16 slots, which is more than 40.5% of motherboards and equal to 26.8% of motherboards.
PCIe slot electrical configuration
x16
PCIe slot electrical configuration
x16
â–¼ Worse than 81% of models
This motherboard uses x16 for PCIe slot electrical configuration, which is less flexible than that of 81% of motherboards and equal to that of 16.1% of motherboards.
PCIe bifurcation support
yes
PCIe bifurcation support
yes
â–² Better than 40% of models
This motherboard supports PCIe bifurcation. 40.4% of motherboards support this feature.
x8/x8.
Show more
Total USB ports (rear I/O)
6
Total USB ports (rear I/O)
6
â–¼ Worse than 64% of models
Market range: <6 – >10
This motherboard has 6 USB ports (rear I/O), which is fewer than 64.3% of motherboards and equal to 32.7% of motherboards.
includes USB4 / Thunderbolt ports.
Total USB ports (including headers)
11
Total USB ports (including headers)
11
â–¼ Worse than 89% of models
Market range: <11 – >19
This motherboard has 11 USB ports (including headers), which is fewer than 88.9% of motherboards and equal to 3% of motherboards.
Total USB-C ports (rear I/O)
1
Total USB-C ports (rear I/O)
1
â–² Better than 35% of models
Market range: <0 – >2
This motherboard has 1 USB-C ports (rear I/O), which is more than 35.5% of motherboards and equal to 48.7% of motherboards.
Total USB-C ports (including headers)
1
Total USB-C ports (including headers)
1
â–¼ Worse than 48% of models
Market range: <0 – >3
This motherboard has 1 USB-C ports (including headers), which is more than 30.4% of motherboards and equal to 21.3% of motherboards.
includes internal USB-C header.
N. of USB 3.2 Gen2x2 ports (USB-C)
0
N. of USB 3.2 Gen2x2 ports (USB-C)
0
â–¼ Worse than 18% of models
Market range: <0 – >1
This motherboard has 0 USB 3.2 Gen2x2 ports (USB-C), which is fewer than 18.3% of motherboards and equal to 81.7% of motherboards.
Show more
LAN speed
1 Gbps
LAN speed
1 Gbps
â–¼ Worse than 51% of models
Market range: <1 Gbps – >2.5 Gbps
This motherboard supports LAN speeds up to 1 Gbps, which is lower than that of 50.8% of motherboards and equal to that of 49.2% of motherboards.
LAN controller
Intel I219-V
LAN controller
Intel I219-V
â–² Better than 58% of models
This motherboard uses the Intel I219-V LAN controller, which is more advanced than that of 58.2% of motherboards and equal to that of 10% of motherboards.
N. of RJ45 ports
1
N. of RJ45 ports
1
â–¼ Worse than 14% of models
Market range: <1 – >2
This motherboard has 1 RJ45 ports, which is fewer than 14.4% of motherboards and equal to 85.6% of motherboards.
Wi-Fi connectivity
yes
Wi-Fi connectivity
yes
â–² Better than 50% of models
This motherboard supports Wi-Fi connectivity. 50% of motherboards support this feature.
Wi-Fi version
Wi-Fi 5 (802.11ac)
Wi-Fi version
Wi-Fi 5 (802.11ac)
â–² Better than 50% of models
This motherboard supports Wi-Fi 5 (802.11ac), which is newer than that of 49.7% of motherboards and equal to that of 10.7% of motherboards.
Show more
Audio codec
Realtek ALC1220
Audio codec
Realtek ALC1220
â–² Better than 65% of models
This motherboard uses the Realtek ALC1220 audio codec, which is more advanced than that of 65.3% of motherboards and equal to that of 12.9% of motherboards.
Audio channels
7.1
Audio channels
7.1
â–² Better than 5% of models
This motherboard offers 7.1 audio channels, which is more than 4.9% of motherboards and equal to 95.1% of motherboards.
Audio SNR
120 dB
Audio SNR
120 dB
â–² Better than 56% of models
Market range: <95 dB – >120 dB
This motherboard has an audio SNR of 120 dB, which is higher than that of 56% of motherboards and equal to that of 40.5% of motherboards.
Headphone amp support
yes
Headphone amp support
yes
â–² Better than 41% of models
This motherboard supports a headphone amp. 40.8% of motherboards support this feature.
N. of 3.5mm audio jacks
5
N. of 3.5mm audio jacks
5
â–² Better than 50% of models
Market range: <2 – >6
This motherboard has 5 3.5mm audio jacks, which is more than 49.6% of motherboards and equal to 37% of motherboards.
Show more
VRM phases
7
VRM phases
7
â–¼ Worse than 81% of models
This motherboard has 7 VRM phases, which is fewer than 81% of motherboards and equal to 1.1% of motherboards.
N. of CPU power connectors
1
N. of CPU power connectors
1
â–¼ Worse than 45% of models
Market range: <1 – >2
This motherboard has 1 CPU power connectors, which is fewer than 45.5% of motherboards and equal to 54.5% of motherboards.
N. of fan headers
3
N. of fan headers
3
â–¼ Worse than 77% of models
Market range: <3 – >8
This motherboard has 3 fan headers, which is fewer than 77.1% of motherboards and equal to 14.8% of motherboards.
Pump header
yes
Pump header
yes
â–² Better than 22% of models
This motherboard has a pump header. 21.9% of motherboards include this feature.
Pump header max current
2 A
Pump header max current
2 A
â–² Better than 45% of models
Market range: <0 A – >3 A
This motherboard supports up to 2 A on the pump header, which is higher than that of 45.4% of motherboards and equal to that of 32.4% of motherboards.
Show more

ASRock Z390 Phantom Gaming ITX AC vs the average motherboard

246810TotalPlatform & FeaturesMemoryStorageExpansionPorts & USBNetworkAudioPower & Cooling
  • 3 more USB 3.2 Gen2 ports
    N. of USB 3.2 Gen2 ports (USB-A)
    4
    â–² Better than 89% of models
    Market range: <0 – >4
    This motherboard has more USB 3.2 Gen2 ports than the average motherboard (4 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
    4 vs 1
  • More advanced LAN controller
    LAN controller
    Intel I219-V
    â–² Better than 58% of models
    This motherboard has better LAN controller than the average motherboard (Intel I219-V vs Killer + Intel + Realtek). The average motherboard uses Killer + Intel + Realtek LAN controller.
    Intel I219-V vs Killer + Intel + Realtek
  • Better audio codec
    Audio codec
    Realtek ALC1220
    â–² Better than 65% of models
    This motherboard has better audio codec than the average motherboard (Realtek ALC1220 vs Realtek ALC897). The average motherboard uses Realtek ALC897 audio codec.
    Realtek ALC1220 vs Realtek ALC897
  • Rear-panel CMOS reset button
    Rear-panel CMOS reset button
    yes
    â–² Better than 73% of models
    This motherboard has a rear-panel CMOS reset button, while the average motherboard does not. 26.7% of motherboards include a rear-panel CMOS reset button.
    Rear-panel Clear CMOS button.
  • Supports Bluetooth
    Bluetooth connectivity
    yes
    â–² Better than 51% of models
    This motherboard supports Bluetooth, while the average motherboard does not. 48.9% of motherboards support Bluetooth.
  • 135 mm shorter
    Height
    170 mm
    ★ Better than 93% of models
    Market range: <170 mm – >320 mm
    This motherboard is shorter than the average motherboard (170 mm vs 305 mm). The average motherboard height is 305 mm.
    170 mm vs 305 mm
  • 5 dB higher audio SNR
    Audio SNR
    120 dB
    â–² Better than 56% of models
    Market range: <95 dB – >120 dB
    This motherboard has a higher audio SNR than the average motherboard (120 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
    120 dB vs 115 dB
  • 74 mm narrower
    Width
    170 mm
    ★ Better than 93% of models
    Market range: <170 mm – >320 mm
    This motherboard is narrower than the average motherboard (170 mm vs 244 mm). The average motherboard width is 244 mm.
    170 mm vs 244 mm
  • 8.2% higher user score
    User score
    8.7/ 10
    ✕
    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 distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    ASRock Z390 Phantom Gaming ITX AC
    the average motherboard
    ASRock Z390 Phantom Gaming ITX AC has a higher user score than the average motherboard (8.66 vs 8.000).
    8.66 vs 8
  • Rear-panel CMOS reset button
    Rear-panel CMOS reset button
    yes
    â–² Better than 73% of models
    This motherboard has a rear-panel CMOS reset button, while the average motherboard does not. 26.7% of motherboards include a rear-panel CMOS reset button.
    Rear-panel Clear CMOS button.
  • 3 more USB 3.2 Gen2 ports
    N. of USB 3.2 Gen2 ports (USB-A)
    4
    â–² Better than 89% of models
    Market range: <0 – >4
    This motherboard has more USB 3.2 Gen2 ports than the average motherboard (4 vs 1). The average motherboard has 1 USB 3.2 Gen2 port/s.
    4 vs 1
  • More advanced LAN controller
    LAN controller
    Intel I219-V
    â–² Better than 58% of models
    This motherboard has better LAN controller than the average motherboard (Intel I219-V vs Killer + Intel + Realtek). The average motherboard uses Killer + Intel + Realtek LAN controller.
    Intel I219-V vs Killer + Intel + Realtek
  • Supports Bluetooth
    Bluetooth connectivity
    yes
    â–² Better than 51% of models
    This motherboard supports Bluetooth, while the average motherboard does not. 48.9% of motherboards support Bluetooth.
  • Better audio codec
    Audio codec
    Realtek ALC1220
    â–² Better than 65% of models
    This motherboard has better audio codec than the average motherboard (Realtek ALC1220 vs Realtek ALC897). The average motherboard uses Realtek ALC897 audio codec.
    Realtek ALC1220 vs Realtek ALC897
  • 5 dB higher audio SNR
    Audio SNR
    120 dB
    â–² Better than 56% of models
    Market range: <95 dB – >120 dB
    This motherboard has a higher audio SNR than the average motherboard (120 dB vs 115 dB). The average motherboard has audio SNR of 115 dB.
    120 dB vs 115 dB
  • 135 mm shorter
    Height
    170 mm
    ★ Better than 93% of models
    Market range: <170 mm – >320 mm
    This motherboard is shorter than the average motherboard (170 mm vs 305 mm). The average motherboard height is 305 mm.
    170 mm vs 305 mm
  • 74 mm narrower
    Width
    170 mm
    ★ Better than 93% of models
    Market range: <170 mm – >320 mm
    This motherboard is narrower than the average motherboard (170 mm vs 244 mm). The average motherboard width is 244 mm.
    170 mm vs 244 mm
  • 60% lower LAN speed
    LAN speed
    1 Gbps
    â–¼ Worse than 51% of models
    Market range: <1 Gbps – >2.5 Gbps
    This motherboard 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
    Chipset
    Intel Z390
    â–¼ Worse than 60% of models
    This motherboard has more basic motherboard chipset than the average motherboard (Intel Z390 vs Intel B860). The average motherboard uses Intel B860 chipset.
    Intel Z390 vs Intel B860
  • Slower M.2 slot interfaces
    M.2 slot interface per slot
    2x PCIe 3.0 x4/SATA
    â–¼ Worse than 68% of models
    This motherboard has slower M.2 slot interfaces than the average motherboard (2x PCIe 3x4/SATA vs 1x PCIe 5x4, 2x PCIe 4x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.
    2x PCIe 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4
  • 2 fewer memory slots
    Memory slots
    2
    â–¼ Worse than 79% of models
    Market range: <2 – >4
    This motherboard has fewer memory slots than the average motherboard (2 vs 4). The average motherboard has 4 memory slot/s.
    2 vs 4
  • 2 fewer rear USB ports
    Total USB ports (rear I/O)
    6
    â–¼ Worse than 64% of models
    Market range: <6 – >10
    This motherboard has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.
    includes USB4 / Thunderbolt ports.
    6 vs 8
  • 50% less maximum memory capacity
    Maximum memory capacity
    64 GB
    â–¼ Worse than 63% of models
    Market range: <32 GB – >256 GB
    This motherboard has fewer maximum memory capacity than the average motherboard (64 GB vs 128 GB). The average motherboard supports 128 GB of memory.
    requires BIOS update for full capacity
    64 GB vs 128 GB
  • 4 fewer total USB connections
    Total USB ports (including headers)
    11
    â–¼ Worse than 89% of models
    Market range: <11 – >19
    This motherboard has fewer total USB connections than the average motherboard (11 vs 15). The average motherboard has 15 total USB connections.
    11 vs 15
  • Less flexible PCIe lane configuration
    PCIe slot electrical configuration
    x16
    â–¼ Worse than 81% of models
    This motherboard has less flexible PCIe lane configuration than the average motherboard (x16 vs x16/x0/x4, x8/x8/x4). The average motherboard uses x16/x0/x4, x8/x8/x4 PCIe slot lane configuration.
    x16 vs x16/x0/x4, x8/x8/x4
  • 7.3% worse value for money
    ASRock Z390 Phantom Gaming ITX AC has worse value for money than the average motherboard (6.91 vs 7.4).
    6.91 vs 7.41
  • More basic motherboard chipset
    Chipset
    Intel Z390
    â–¼ Worse than 60% of models
    This motherboard has more basic motherboard chipset than the average motherboard (Intel Z390 vs Intel B860). The average motherboard uses Intel B860 chipset.
    Intel Z390 vs Intel B860
  • No BIOS flashback support
    BIOS flashback
    no
    â–¼ Worse than 51% of models
    This motherboard does not support BIOS flashback, while the average motherboard does. 50.9% of motherboards support BIOS flashback.
  • No debug LED indicators
    Debug LED indicators
    no
    â–¼ Worse than 79% of models
    This motherboard does not have debug LED indicators, while the average motherboard does. 78.7% of motherboards include debug LED indicators.
  • Less versatile form factor
    Form factor
    Mini-ITX
    â–¼ Worse than 85% of models
    This motherboard has less versatile form factor than the average motherboard (Mini-ITX vs ATX). The average motherboard comes in ATX form factor.
    Mini-ITX vs ATX
  • Fewer BIOS update options
    BIOS update methods
    UEFI utility, Windows app, DOS
    â–¼ Worse than 79% of models
    This motherboard has fewer BIOS update options than the average motherboard (UEFI utility, Windows app, DOS vs UEFI utility, flashback, Windows app). The average motherboard offers UEFI utility, flashback, Windows app BIOS update methods.
    UEFI utility, Windows app, DOS vs UEFI utility, flashback, Windows app
  • No TPM connector
    TPM connector
    no
    â–¼ Worse than 88% of models
    This motherboard does not have a TPM connector, while the average motherboard does. 88% of motherboards include a TPM connector.
    Firmware TPM/PTT only.
  • 2 fewer memory slots
    Memory slots
    2
    â–¼ Worse than 79% of models
    Market range: <2 – >4
    This motherboard has fewer memory slots than the average motherboard (2 vs 4). The average motherboard has 4 memory slot/s.
    2 vs 4
  • 50% less maximum memory capacity
    Maximum memory capacity
    64 GB
    â–¼ Worse than 63% of models
    Market range: <32 GB – >256 GB
    This motherboard has fewer maximum memory capacity than the average motherboard (64 GB vs 128 GB). The average motherboard supports 128 GB of memory.
    requires BIOS update for full capacity
    64 GB vs 128 GB
  • 43.7% lower maximum RAM speed
    Maximum RAM speed
    2,666 MT/s
    â–¼ Worse than 79% of models
    Market range: <2k MT/s – >8k MT/s
    This motherboard has a lower maximum RAM speed than the average motherboard (2666 MT/s vs 4733 MT/s). The average motherboard supports RAM speed of 4733 MT/s.
    2,666 MT/s vs 4,733 MT/s
  • Slower M.2 slot interfaces
    M.2 slot interface per slot
    2x PCIe 3.0 x4/SATA
    â–¼ Worse than 68% of models
    This motherboard has slower M.2 slot interfaces than the average motherboard (2x PCIe 3x4/SATA vs 1x PCIe 5x4, 2x PCIe 4x4). The average motherboard uses 1x PCIe 5.0x4, 2x PCIe 4.0x4 M.2 slot interfaces.
    2x PCIe 3.0x4/SATA vs 1x PCIe 5.0x4, 2x PCIe 4.0x4
  • Less flexible PCIe lane configuration
    PCIe slot electrical configuration
    x16
    â–¼ Worse than 81% of models
    This motherboard has less flexible PCIe lane configuration than the average motherboard (x16 vs x16/x0/x4, x8/x8/x4). The average motherboard uses x16/x0/x4, x8/x8/x4 PCIe slot lane configuration.
    x16 vs x16/x0/x4, x8/x8/x4
  • No multi-GPU support
    Multi-GPU support
    no
    â–¼ Worse than 55% of models
    This motherboard does not support multi-GPU, while the average motherboard does. 54.6% of motherboards support multi-GPU.
  • 1 fewer PCIe x1 slots
    N. of PCIe x1 slots
    0
    â–¼ Worse than 69% of models
    Market range: <0 – >3
    This motherboard has fewer PCIe x1 slots than the average motherboard (0 vs 1). The average motherboard has 1 PCIe x1 slot/s.
    0 vs 1
  • 2 fewer rear USB ports
    Total USB ports (rear I/O)
    6
    â–¼ Worse than 64% of models
    Market range: <6 – >10
    This motherboard has fewer rear USB ports than the average motherboard (6 vs 8). The average motherboard has 8 rear USB port/s.
    includes USB4 / Thunderbolt ports.
    6 vs 8
  • 4 fewer total USB connections
    Total USB ports (including headers)
    11
    â–¼ Worse than 89% of models
    Market range: <11 – >19
    This motherboard has fewer total USB connections than the average motherboard (11 vs 15). The average motherboard has 15 total USB connections.
    11 vs 15
  • 2 fewer USB 3.2 Gen1 ports
    N. of USB 3.2 Gen1 ports (USB-A)
    2
    â–¼ Worse than 60% of models
    Market range: <0 – >6
    This motherboard has fewer USB 3.2 Gen1 ports than the average motherboard (2 vs 4). The average motherboard has 4 USB 3.2 Gen1 port/s.
    2 vs 4
  • 1 fewer USB 2.0 headers
    N. of USB 2.0 headers (USB-A)
    1
    â–¼ Worse than 86% of models
    Market range: <1 – >2
    This motherboard has fewer USB 2.0 headers than the average motherboard (1 vs 2). The average motherboard has 2 USB 2.0 header/s.
    1 vs 2
  • Older HDMI version
    HDMI version
    2.0
    â–² Better than 46% of models
    This motherboard has older HDMI version than the average motherboard (2 vs 2.1). The average motherboard supports HDMI 2.1.
    2.0 vs 2.1
  • 2 fewer USB 2.0 ports
    N. of USB 2.0 ports
    0
    â–¼ Worse than 81% of models
    Market range: <0 – >4
    This motherboard has fewer USB 2.0 ports than the average motherboard (0 vs 2). The average motherboard has 2 USB 2.0 port/s.
    0 vs 2
  • 60% lower LAN speed
    LAN speed
    1 Gbps
    â–¼ Worse than 51% of models
    Market range: <1 Gbps – >2.5 Gbps
    This motherboard 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
  • Older Bluetooth version
    Bluetooth version
    5.0
    â–² Better than 58% of models
    This motherboard has older Bluetooth version than the average motherboard (5 vs 5.4). The average motherboard supports Bluetooth 5.4.
    5.0 vs 5.4
  • Fewer VRM phases
    VRM phases
    7
    â–¼ Worse than 81% of models
    This motherboard has fewer VRM phases than the average motherboard (7 vs 10). The average motherboard has 10 VRM phase/s.
    7 vs 10
  • 2.5 fewer fan headers
    N. of fan headers
    3
    â–¼ Worse than 77% of models
    Market range: <3 – >8
    This motherboard has fewer fan headers than the average motherboard (3 vs 5.5). The average motherboard has 5.5 fan header/s.
    3 vs 5.5
  • 1 fewer ARGB headers
    N. of ARGB headers (3-pin)
    1
    â–¼ Worse than 51% of models
    Market range: <0 – >3
    This motherboard has fewer ARGB headers than the average motherboard (1 vs 2). The average motherboard has 2 ARGB header/s.
    1 vs 2

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Third-party reviews

Based on 410 buyer reviews from online shops.
Reviews last updated: May 2026 · How we calculate this
Read buyer reviews on Amazon →

What we like about ASRock Z390 Phantom Gaming ITX AC

  • High-end VRM (Intersil Smart Power Stages) capable of handling the i9-9900K and heavy overclocking
  • Comprehensive connectivity including Thunderbolt 3 (Type-C), WiFi 5 (802.11ac), and HDMI 2.0
  • Dual M.2 slots (one on front with heatsink, one on back) providing excellent storage for ITX
  • Intuitive and well-organized UEFI/BIOS with extensive memory tuning options
  • Superior onboard audio using the Realtek ALC1220 codec with Purity Sound 4
  • Solid build quality featuring an 8-layer PCB and high-density glass fabric

What we don't like about ASRock Z390 Phantom Gaming ITX AC

  • Extremely tight DIMM slot spacing can cause interference with thick RAM heat spreaders
  • Thunderbolt 3 port is limited to half-bandwidth (20Gbps) rather than full 40Gbps
  • Large VRM heatsinks may cause compatibility issues with certain large air coolers
  • Lack of a front-panel USB 3.1 Gen2 header found on some competing boards
  • Reported issues with DisplayPort output being intermittent during initial boot
  • No physical power or reset buttons on the motherboard itself

Verdict

The ASRock Z390 Phantom Gaming-ITX/ac is a high-performance Mini-ITX motherboard designed for 8th and 9th Gen Intel Core processors, featuring a robust 7-phase VRM with 60A power chokes and an 8-layer PCB for stable overclocking. It is packed with premium connectivity, including a full-speed Thunderbolt 3 port (40Gbps), dual-band 802.11ac Wi-Fi reaching up to 1.73Gbps, and dual Ultra M.2 slots (PCIe Gen3 x4) with a front-side heatsink. Its main pros include exceptional memory overclocking support up to 4500MHz+, high-end Realtek ALC1220 7.1 audio, and an integrated HDMI 2.0 port for 4K 60Hz output. However, it lacks a front-panel USB 3.1 Gen2 header, features only four SATA ports, and the tight component layout can make some large air coolers difficult to install.

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