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ASUS RT AX55 Review | 77 Data compared

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  • Avg. price in UK: ~£95
  • Avg. price in US: ~$130
  • Wi-Fi version: Wi-Fi 6 (802.11ax)
  • Wi-Fi speed: 1800 Mbps
  • LAN port speeds: 1 Gbps
  • Wireless coverage: 278 m²

ASUS RT AX55 review. Compare 77 technical specifications and user reviews to see how it ranks among routers and if it is worth buying.

7.6

Overall score

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

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

Score components:

90.0%

7.5

Technical Score

10.0%

9.1

User score

Very good
7.5

Technical Score

What it is: An assessment of the router's technical performance, covering key areas such as Wi-Fi performance, wired connectivity, security, software features, coverage, and design.

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

Score components:

26.0%

7.2

Wireless

20.0%

5.5

Ports

18.0%

8.6

Networking

14.0%

9.8

Security

12.0%

7.1

Hardware

10.0%

7.6

Management

Very good
9.1

User score

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

When it matters: When you want to know how a router performs in daily use and how reliable it is for speed, coverage, and stability according to user feedback.

Score components:

70.0%

8.8

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.4
(3004)
amazon
4.4
(399)
amazon
4.5
(332)
amazon
4.3
(138)
United States
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4.4
(3200)
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4.5
(318)
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4.3
(143)
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4.1
(128)
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4.4
(115)
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4.1
(54)

(Reviews last updated: May 2026)

Exceptional
  • 5.7
    Gaming

    Score components:

    33.0%

    3.8

    Wi-Fi speed

    28.0%

    9.5

    CPU clock speed

    22.0%

    5.4

    RAM capacity

    17.0%

    3.5

    Maximum connected devices

  • 5.6
    Travel

    Score components:

    40.0%

    9.0

    Weight

    30.0%

    3.8

    Wi-Fi speed

    20.0%

    4.0

    Cellular modem type

    10.0%

    1.0

    SIM slot

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Best prices in UK

Best rankings

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

Verdict

The ASUS RT-AX55 is a dual-band AX1800 Wi-Fi 6 router featuring a 1.5GHz quad-core processor, 256MB of RAM, and 128MB of flash memory. It delivers theoretical throughput speeds of up to 1800Mbps (1201Mbps on 5GHz and 574Mbps on 2.4GHz) and is equipped with four external antennas and five Gigabit Ethernet ports (1 WAN, 4 LAN). Key characteristics include support for 1024-QAM, MU-MIMO, and OFDMA technologies to improve network efficiency in multi-device households. Main pros include its affordability as an entry-level Wi-Fi 6 option, compatibility with ASUS AiMesh for extended coverage, and lifetime free AiProtection security. Notable cons include the lack of a USB port for storage sharing, no support for the faster 160MHz channel bandwidth, and relatively weak wireless performance on the 2.4GHz band.

Technical Specifications of router ASUS RT AX55

Technical Score

What it is: An assessment of the router's technical performance, covering key areas such as Wi-Fi performance, wired connectivity, security, software features, coverage, and design.

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

Score components:

26.0%

7.2

Wireless

20.0%

5.5

Ports

18.0%

8.6

Networking

14.0%

9.8

Security

12.0%

7.1

Hardware

10.0%

7.6

Management

7.5
ASUS RT AX55 has a technical score of 7.48 points, which is higher than that of 76% 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 router.

When it matters: When you want to know how a router performs in daily use and how reliable it is for speed, coverage, and stability according to user feedback.

Score components:

70.0%

8.8

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.4
(3004)
amazon
4.4
(399)
amazon
4.5
(332)
amazon
4.3
(138)
United States
Amazon_logo.png
4.4
(3200)
Amazon_logo.png
4.5
(318)
Amazon_logo.png
4.3
(143)
Amazon_logo.png
4.1
(128)
Amazon_logo.png
4.4
(115)
Amazon_logo.png
4.1
(54)

(Reviews last updated: May 2026)

9.1
ASUS RT AX55 has a user score of 9.15 points, which is higher than that of 90.9% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by the router.
When it matters: When you prefer to choose a router reviewed and selected by many other buyers.
10
ASUS RT AX55 has a popularity of 10 points, which is higher than 63.5% of products in this category.
Ratio quality/price

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

When it matters: When you are looking for a router with a good balance between network performance, features, and price.

Score components:

60.0%

7.6

Overall score

40.0%

10

Price

8.4
ASUS RT AX55 has a quality-to-price ratio of 8.4 points, which is higher than 85.1% of products in this category.
Brand name
What it is: The manufacturer or brand of the product.
When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

Asus
Wi-Fi version
What it is: Identifies the Wi-Fi generation the router supports, such as Wi-Fi 5, 6, 6E, or 7.
When it matters: When newer phones, laptops, and consoles need the latest Wi-Fi efficiency and speed features.

Importance: HIGH

Good value: Wi-Fi 6 (802.11ax)

Wi-Fi 6 (802.11ax)
ASUS RT AX55 uses Wi-Fi Wi-Fi 6 (802.11ax). 65% of routers use this Wi-Fi standard.
Wi-Fi bands
What it is: Lists which wireless frequency bands the router can use, such as 2.4 GHz, 5 GHz, or 6 GHz.
When it matters: When you need to balance range, speed, and congestion across different types of client devices.

Importance: HIGH

Good value: 2.4 GHz + 5 GHz

2.4 GHz + 5 GHz
ASUS RT AX55 supports 2.4 GHz + 5 GHz Wi-Fi bands. 25% of routers use the same band setup.
Wi-Fi speed
What it is: The advertised maximum wireless throughput rating of the router under supported conditions.
When it matters: When several users stream, download, and game at once and you want more wireless headroom.

Importance: HIGH

Good value: >2700 Mbps

1,800 Mbps
ASUS RT AX55 delivers 1,800 Mbps Wi-Fi speed, which is higher than 59.5% of routers and equal to 3.5% of routers.
Channel widths supported
What it is: Lists the Wi-Fi channel widths the router can use, such as 20, 40, 80, or 160 MHz.
When it matters: When you want the option to trade peak speed against stability in crowded wireless environments.

Importance: MEDIUM

Good value: 20 MHz + 40 MHz + 80 MHz

20 MHz + 40 MHz + 80 MHz
ASUS RT AX55 supports 20 MHz + 40 MHz + 80 MHz channel width options, which is more than 40.4% of routers and the same as 32.1% of routers.
Show more
Wi-Fi security protocols
What it is: Lists the wireless security standards the router supports, such as WPA2 or WPA3.
When it matters: When you want stronger wireless protection without locking out older devices that still need compatibility.

Importance: HIGH

WPA3, WPA2, WPA, WPS
ASUS RT AX55 supports WPA3, WPA2, WPA, WPS Wi-Fi security protocols. 79.1% of routers use this security setup.
DoS protection
What it is: Provides defenses intended to reduce the impact of denial-of-service traffic against the router or network.
When it matters: When exposed services or remote access make resilience against traffic floods more important.

Importance: HIGH

yes
ASUS RT AX55 supports DoS protection. 11.1% of routers include DoS protection.
SPI intrusion protection
What it is: Uses stateful packet inspection to track sessions and block suspicious unsolicited traffic more accurately.
When it matters: When the router needs a stronger first line of filtering on an internet-facing connection.

Importance: HIGH

?
MAC address filtering
What it is: Lets the router allow or block devices based on their MAC addresses.
When it matters: When you want an extra device-level access rule beyond passwords and network names.

Importance: MEDIUM

yes
ASUS RT AX55 supports mac address filtering. 1% of routers include MAC address filtering.
URL filter
What it is: Allows the router to block or allow access based on website addresses or domain rules.
When it matters: When you need to restrict specific sites for children, guests, or work-policy reasons.

Importance: MEDIUM

yes
ASUS RT AX55 supports URL filter. 1.9% of routers include URL filtering.
Show more
IPv6 support
What it is: Support for the newer IPv6 internet addressing standard alongside the older IPv4 system.
When it matters: When your internet provider or network already uses IPv6, or you want the router to stay compatible as IPv6 use becomes more common.

Importance: HIGH

yes
ASUS RT AX55 supports IPv6. 10.9% of routers are IPv6-ready.
Dynamic routing
What it is: Supports routing protocols or dynamic route updates instead of relying only on static route entries.
When it matters: When the router sits in a more complex network with changing paths between multiple subnets.

Importance: MEDIUM

no
ASUS RT AX55 does not support dynamic routing. 53.4% of routers include dynamic routing.
Inter-VLAN routing
What it is: Allows the router to pass traffic between separate VLANs under controlled rules.
When it matters: When you need segmented networks to communicate selectively instead of staying fully isolated.

Importance: MEDIUM

no
ASUS RT AX55 does not support inter-vlan routing. 22.2% of routers include inter-VLAN routing.
VLAN tagging
What it is: Lets the router mark traffic with VLAN tags for segmented or ISP-specific network setups.
When it matters: When you separate guest, office, IoT, or ISP-required traffic into different network segments.

Importance: MEDIUM

yes
ASUS RT AX55 supports VLAN tagging. 37.2% of routers include VLAN tagging.
QoS
What it is: Provides quality-of-service controls that prioritize some traffic over less important traffic.
When it matters: When calls, gaming, and downloads compete and you want latency-sensitive traffic protected.

Importance: HIGH

yes
ASUS RT AX55 supports QoS. 2.7% of routers include QoS controls.
Show more
N. of LAN ports
What it is: Measures how many LAN ports the router includes. A higher count expands direct connectivity for matching devices.
When it matters: When you run a home office with NAS, TV boxes, and desktops, having more LAN ports avoids extra switches and keeps latency lower on wired links.

Importance: HIGH

Good value: 4 ports

4
ASUS RT AX55 has 4 LAN ports, which is more than 23.4% of routers and the same as 69.5% of routers.
LAN port speeds
What it is: Lists the Ethernet speeds available on the router’s LAN ports, such as Gigabit or multi-gig.
When it matters: When wired transfers to NAS, desktops, or access points need more than basic Ethernet speeds.

Importance: HIGH

Good value: 1 Gbps

1 Gbps
ASUS RT AX55 offers 1 Gbps on its LAN ports, which is faster than 27.2% of routers and on par with 59.8% of routers.
N. of WAN ports
What it is: Shows how many separate WAN uplink ports the router provides for internet connections.
When it matters: When you use dual internet lines, backup WAN, or load balancing between multiple external links.

Importance: HIGH

Good value: 1 WAN port

1
ASUS RT AX55 has 1 WAN ports, which is more than 1% of routers and the same as 90.1% of routers.
N. of USB ports
What it is: Shows how many USB ports the router includes for storage, printers, or modem accessories.
When it matters: When you plan to share storage, attach a printer, or use USB-based network extras.

Importance: MEDIUM

Good value: 1 USB port

0
ASUS RT AX55 has 0 USB ports, which is fewer than 61.1% of routers and the same as 38.9% of routers.
Power over Ethernet (PoE)
What it is: Power over Ethernet support, meaning the router can receive power, deliver it, or be part of a PoE-based installation.
When it matters: When you want cleaner installation with fewer separate power cables, especially in ceilings, walls, racks, or remote locations.

Importance: MEDIUM

no
ASUS RT AX55 does not support Power over Ethernet (PoE). 0.5% of routers can be powered over Ethernet.
Show more
Management interface
What it is: Shows how the router is configured and monitored, such as web UI, app, or command-line tools.
When it matters: When setup depth and day-to-day admin convenience are part of the buying decision.

Importance: HIGH

Web UI, App
ASUS RT AX55 is managed via Web UI, App. 33.4% of routers use this management method.
ASUS Router app
Firmware upgrade method
What it is: Describes how router firmware updates are installed, such as automatic OTA, web UI, or manual upload.
When it matters: When you want security fixes and new features applied with less maintenance friction.

Importance: HIGH

Web UI, Automatic
ASUS RT AX55 uses Web UI, Automatic firmware updates. 35.4% of routers use this update method.
Traffic monitoring
What it is: Lets the router track bandwidth usage by device, app category, or time period.
When it matters: When you need to find which devices or activities are causing slowdowns or high data use.

Importance: MEDIUM

yes
ASUS RT AX55 supports traffic monitoring. 17.5% of routers include traffic monitoring.
Guest Wi-Fi network
What it is: Lets the router create a separate wireless network for visitors or less-trusted devices.
When it matters: When guests need internet access without reaching private devices on the main network.

Importance: HIGH

yes
ASUS RT AX55 supports guest Wi-Fi network. 8.6% of routers offer a guest Wi-Fi network.
Captive portal
What it is: Supports a login or acceptance page that users must pass before getting internet access.
When it matters: When guest networks, rentals, cafes, or managed access points need a sign-in page.

Importance: MEDIUM

yes
ASUS RT AX55 supports captive portal. 76.4% of routers include captive portal features.
Show more
CPU clock speed
What it is: Shows the operating frequency of the router processor, often listed per core.
When it matters: When routing, encryption, QoS, and many active clients can put heavier load on the CPU.

Importance: HIGH

4 x 1.5 GHz
ASUS RT AX55 runs at 4x1.5 GHz, which is faster than 79% of routers and on par with 4.9% of routers.
RAM capacity
What it is: The amount of working memory available for sessions, routing tables, and running router services.
When it matters: When many devices, VPN tunnels, or advanced features need the router to stay responsive under load.

Importance: HIGH

Good value: >=512 MB

256 MB
ASUS RT AX55 has 256 MB of RAM, which is more than 49.6% of routers and the same as 15.4% of routers.
Internal storage
What it is: The built-in storage available for logs, apps, shared files, or other local router functions.
When it matters: When the router runs extra services and needs space for logs, packages, or shared content.

Importance: MEDIUM

Good value: >=8 GB

0.125 GB
ASUS RT AX55 has 0.125 GB of internal storage, which is less than 64.6% of routers and the same as 11.8% of routers.
Hardware acceleration
What it is: Uses dedicated hardware paths to offload routing, NAT, encryption, or switching tasks from the main CPU.
When it matters: When heavy routing or security features would otherwise reduce throughput on the processor alone.

Importance: HIGH

yes
ASUS RT AX55 supports hardware acceleration. 18.6% of routers include hardware acceleration.
N. of external antennas
What it is: Shows how many antennas are mounted externally on the router.
When it matters: When you want stronger adjustable coverage or plan to aim antennas for difficult room layouts.

Importance: MEDIUM

Good value: 3 antennas

4
ASUS RT AX55 has 4 external antennas, which is more than 71.9% of routers and the same as 17.5% of routers.
Show more

ASUS RT AX55 vs the average router

  • Stronger Wi-Fi security
    ASUS RT AX55 supports the Wi-Fi security protocols WPA3, WPA2, WPA, WPS, while the average router supports WPA2, WPA, WEP, WPS. 0.00% of routers support WPA3, WPA2, WPA, WPS.
    What it is: Lists the wireless security standards the router supports, such as WPA2 or WPA3.
    When it matters: When you want stronger wireless protection without locking out older devices that still need compatibility.

    Importance: HIGH

    ASUS RT AX55 supports the Wi-Fi security protocols WPA3, WPA2, WPA, WPS, while the average router supports WPA2, WPA, WEP, WPS. 0.00% of routers support WPA3, WPA2, WPA, WPS.WPA3, WPA2, WPA, WPS vs WPA2, WPA, WEP, WPS
  • Supports Mesh Wi-Fi
    ASUS RT AX55 supports mesh Wi-Fi, while the average router does not. 37.3% of routers support mesh Wi-Fi.
    What it is: Supports mesh networking so multiple nodes can work together as one Wi-Fi system.
    When it matters: When one router alone cannot cover every floor or room reliably.

    Importance: MEDIUM

    ASUS RT AX55 supports mesh Wi-Fi, while the average router does not. 37.3% of routers support mesh Wi-Fi.
  • Supports Automatic failover
    ASUS RT AX55 supports automatic failover, while the average router does not. 24.5% of routers offer automatic failover.
    What it is: Can switch to a backup internet connection automatically if the primary line fails.
    When it matters: When uptime matters and the network cannot stop every time the main WAN drops.

    Importance: MEDIUM

    ASUS RT AX55 supports automatic failover, while the average router does not. 24.5% of routers offer automatic failover.
  • Supports OFDMA support
    ASUS RT AX55 supports OFDMA, while the average router does not. 35% of routers support OFDMA.
    What it is: Supports OFDMA, which divides Wi-Fi channels more efficiently among multiple active clients.
    When it matters: When many small, busy devices share the network and contention needs to stay lower.

    Importance: MEDIUM

    ASUS RT AX55 supports OFDMA, while the average router does not. 35% of routers support OFDMA.
  • 49.5% wider wireless coverage
    ASUS RT AX55 has wider wireless coverage than the average router (278 m² vs 186 m²). The average router offers wireless coverage of 186 m².
    What it is: The estimated area the router is intended to cover with usable Wi-Fi signal.
    When it matters: When one router needs to serve a large apartment, multi-room house, or open office area.

    Importance: HIGH

    Good value: >230 m²

    ASUS RT AX55 has wider wireless coverage than the average router (278 m² vs 186 m²). The average router offers wireless coverage of 186 m².278 m² vs 186 m²
  • Supports MU-MIMO
    ASUS RT AX55 supports MU-MIMO, while the average router does not. 47.8% of routers support MU-MIMO.
    What it is: Supports multi-user MIMO so the router can serve more than one client stream at the same time.
    When it matters: When many active devices share the network and you want wireless capacity used more efficiently.

    Importance: MEDIUM

    ASUS RT AX55 supports MU-MIMO, while the average router does not. 47.8% of routers support MU-MIMO.
  • Higher CPU clock speed
    ASUS RT AX55 has a higher CPU clock speed than the average router (4x1.5 GHz vs 2x0.5 GHz). The average router has CPU clock speed of 2x0.5 GHz.
    What it is: Shows the operating frequency of the router processor, often listed per core.
    When it matters: When routing, encryption, QoS, and many active clients can put heavier load on the CPU.

    Importance: HIGH

    ASUS RT AX55 has a higher CPU clock speed than the average router (4x1.5 GHz vs 2x0.5 GHz). The average router has CPU clock speed of 2x0.5 GHz.4x1.5 GHz vs 2x0.5 GHz
  • Supports Captive portal
    ASUS RT AX55 supports captive portal, while the average router does not. 23.8% of routers support captive portal.
    What it is: Supports a login or acceptance page that users must pass before getting internet access.
    When it matters: When guest networks, rentals, cafes, or managed access points need a sign-in page.

    Importance: MEDIUM

    ASUS RT AX55 supports captive portal, while the average router does not. 23.8% of routers support captive portal.
  • Supports Mesh Wi-Fi
    ASUS RT AX55 supports mesh Wi-Fi, while the average router does not. 37.3% of routers support mesh Wi-Fi.
  • Supports OFDMA support
    ASUS RT AX55 supports OFDMA, while the average router does not. 35% of routers support OFDMA.
  • 49.5% wider wireless coverage
    ASUS RT AX55 has wider wireless coverage than the average router (278 m² vs 186 m²). The average router offers wireless coverage of 186 m².
  • Supports MU-MIMO
    ASUS RT AX55 supports MU-MIMO, while the average router does not. 47.8% of routers support MU-MIMO.
  • 24.1% faster Wi-Fi speed
    ASUS RT AX55 has a higher Wi-Fi speed than the average router (1,800 Mbps vs 1,450 Mbps). The average router reaches Wi-Fi speed of 1,450 Mbps.
  • Supports TWT
    ASUS RT AX55 supports target wake time (TWT), while the average router does not. 36.8% of routers support target wake time.
  • Stronger Wi-Fi security
    ASUS RT AX55 supports the Wi-Fi security protocols WPA3, WPA2, WPA, WPS, while the average router supports WPA2, WPA, WEP, WPS. 0.00% of routers support WPA3, WPA2, WPA, WPS.
  • Supports Automatic failover
    ASUS RT AX55 supports automatic failover, while the average router does not. 24.5% of routers offer automatic failover.
  • Supports Captive portal
    ASUS RT AX55 supports captive portal, while the average router does not. 23.8% of routers support captive portal.
  • Higher CPU clock speed
    ASUS RT AX55 has a higher CPU clock speed than the average router (4x1.5 GHz vs 2x0.5 GHz). The average router has CPU clock speed of 2x0.5 GHz.
  • Suitable for gaming
    ASUS RT AX55 is suitable for gaming, while the average router is not. 37.2% of routers are designed for gaming.

Total
Overall
Wireless
Security
Networking
Management
Hardware
  • No Dynamic routing
    ASUS RT AX55 does not support dynamic routing, while the average router does. 53.3% of routers support dynamic routing.
  • 3,840 fewer NAT sessions
    ASUS RT AX55 has fewer concurrent NAT sessions than the average router (256 vs 4,096). The average router supports 4,096 concurrent NAT sessions.
  • 1 fewer USB ports
    ASUS RT AX55 has fewer USB ports than the average router (0 vs 1). The average router has 1 USB ports.
  • Limited firmware updates
    ASUS RT AX55 supports the firmware update methods Web UI, Automatic, while the average router supports Web UI, App, Automatic. 0.00% of routers support the firmware update methods Web UI, Automatic.
  • Fewer NAS services
    ASUS RT AX55 includes none NAS services, while the average router includes SMB, FTP, time machine, NFS, web access. 0.00% of routers include none NAS services.
  • No DLNA support
    ASUS RT AX55 does not support DLNA, while the average router does. 54.5% of routers support DLNA.
  • No Dynamic routing
    ASUS RT AX55 does not support dynamic routing, while the average router does. 53.3% of routers support dynamic routing.
    What it is: Supports routing protocols or dynamic route updates instead of relying only on static route entries.
    When it matters: When the router sits in a more complex network with changing paths between multiple subnets.

    Importance: MEDIUM

    ASUS RT AX55 does not support dynamic routing, while the average router does. 53.3% of routers support dynamic routing.
  • Limited firmware updates
    ASUS RT AX55 supports the firmware update methods Web UI, Automatic, while the average router supports Web UI, App, Automatic. 0.00% of routers support the firmware update methods Web UI, Automatic.
    What it is: Describes how router firmware updates are installed, such as automatic OTA, web UI, or manual upload.
    When it matters: When you want security fixes and new features applied with less maintenance friction.

    Importance: HIGH

    ASUS RT AX55 supports the firmware update methods Web UI, Automatic, while the average router supports Web UI, App, Automatic. 0.00% of routers support the firmware update methods Web UI, Automatic.Web UI, Automatic vs Web UI, App, Automatic
  • Fewer NAS services
    ASUS RT AX55 includes none NAS services, while the average router includes SMB, FTP, time machine, NFS, web access. 0.00% of routers include none NAS services.
    What it is: Lists the onboard file-sharing services the router can provide, such as SMB, FTP, or media sharing.
    When it matters: When the router is expected to handle light file serving without separate NAS hardware.

    Importance: MEDIUM

    ASUS RT AX55 includes none NAS services, while the average router includes SMB, FTP, time machine, NFS, web access. 0.00% of routers include none NAS services.none vs SMB, FTP, time machine, NFS, web access
  • 1 fewer USB ports
    ASUS RT AX55 has fewer USB ports than the average router (0 vs 1). The average router has 1 USB ports.
    What it is: Shows how many USB ports the router includes for storage, printers, or modem accessories.
    When it matters: When you plan to share storage, attach a printer, or use USB-based network extras.

    Importance: MEDIUM

    Good value: 1 USB port

    ASUS RT AX55 has fewer USB ports than the average router (0 vs 1). The average router has 1 USB ports.0 vs 1
  • No DLNA support
    ASUS RT AX55 does not support DLNA, while the average router does. 54.5% of routers support DLNA.
    What it is: Supports DLNA-related media sharing or discovery for compatible devices on the local network.
    When it matters: When TVs, media players, and local content need easier plug-and-play discovery on the network.

    Importance: LOW

    ASUS RT AX55 does not support DLNA, while the average router does. 54.5% of routers support DLNA.
  • 3,840 fewer NAT sessions
    ASUS RT AX55 has fewer concurrent NAT sessions than the average router (256 vs 4,096). The average router supports 4,096 concurrent NAT sessions.
    What it is: The number of simultaneous NAT-tracked connections the router can handle before tables become a bottleneck.
    When it matters: When many apps and devices open lots of parallel internet sessions at the same time.

    Importance: MEDIUM

    Good value: >=16000 sessions

    ASUS RT AX55 has fewer concurrent NAT sessions than the average router (256 vs 4,096). The average router supports 4,096 concurrent NAT sessions.256 vs 4,096
Total
Networking
Ports
Management

Graphic comparison of ASUS RT AX55 and other routers

Attribute category
Attribute
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Third-party reviews

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(Reviews last updated: May 2026)

What customers like about ASUS RT AX55?

  • Affordable entry point for Wi-Fi 6 technology
  • Easy setup process via the Asus mobile app or web interface
  • Reliable performance for 4K streaming and moderate gaming in small to medium homes
  • AiMesh support allows it to easily integrate into a whole-home mesh network
  • Lifetime free AiProtection (powered by Trend Micro) for network security
  • Good 5GHz throughput and stable performance for multiple concurrent devices

What customers dislike about ASUS RT AX55?

  • Lacks USB ports for connecting external storage or printers
  • No support for 160MHz channel bandwidth, limiting maximum potential speeds
  • Does not support DFS (Dynamic Frequency Selection) channels, which can lead to congestion
  • Lower performance on the 2.4GHz band compared to higher-end models
  • No support for third-party Merlin firmware, unlike the slightly more expensive RT-AX56U
  • Internal hardware (RAM/Flash) is more limited than more advanced Asus models

Expert reviews

R
rtings.com
22/07/2024
ASUS RT-AX55 Router Review - RTINGS.com

The ASUS RT-AX55 is an entry-level Wi-Fi 6 router optimized for smaller living spaces, offering reliable speeds for 4K streaming and compatibility with AiMesh technology for network expansion. It provides decent, budget-friendly performance similar to competitors like the TP-Link Archer AX21, and features a wall-mountable design with standard 1Gbps wired ports. However, the unit...Read more

T
techradar.com
28/09/2022
Asus RT-AX55 review - TechRadar

The Asus RT-AX55, reviewed by TechRadar, is a competitive, budget-friendly Wi-Fi 6 router ideal for upgrading from ISP-supplied hardware, offering AX1800 performance suitable for 4K streaming and routine browsing. Key advantages include its affordable price point, easy setup via the Asus Router app, robust AiMesh compatibility for network expansion, and free lifetime AiProtection...Read more

M
mbreviews.com
25/03/2021
Asus RT-AX55 WiFi 6 Router Review - MBReviews

The Asus RT-AX55, reviewed by MBReviews, is positioned as a budget-friendly, entry-level WiFi 6 router featuring a compact, "insectile" design and four non-removable antennas. While it provides essential Gigabit connectivity, the unit lacks a USB port and wall-mounting options, and suffers from poorly placed status LEDs. Performance highlights include strong 5GHz speeds utilizing...Read more

T
techadvisor.com
25/02/2021
Asus RT-AX55 Review - Tech Advisor

The Asus RT-AX55, reviewed by Tech Advisor, is positioned as a budget-friendly, AX1800 dual-band Wi-Fi 6 router featuring an "insectile" design with four antennae. Its primary pros include delivering impressive, fast speeds, excellent coverage for its price point, and a user-friendly app, while significantly outperforming older Wi-Fi 5 hardware in testing. Additionally, the router...Read more

C
consumerreports.org
No specific date listed
Asus AX1800 (RT-AX55) Wireless Router Review - Consumer Reports Would you like me to look for firmware updates or setup guides for this specific model...

The Asus AX1800 (RT-AX55) is reviewed by Consumer Reports as a budget-friendly, entry-level Wi-Fi 6 router featuring four Gigabit Ethernet ports, 24-month warranty, and AiMesh compatibility. Key strengths include easy setup, robust data security and privacy, and strong throughput performance for standard home environments. However, limitations include the absence of USB ports for...Read more

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