TP-Link Archer AX21 vs ASUS RT-AX55

Tested using Methodology v0.9

Updated Apr 02, 2026 01:00 PM

See TP-Link Archer AX21 Review

Multi Band Dual Band (2.4 / 5)

Wi-Fi Version Wi-Fi 6 (ax)

Test Configuration Standalone

Multi Band Dual Band (2.4 / 5)

Wi-Fi Version Wi-Fi 6 (ax)

Test Configuration Standalone

Our Verdict

TP-Link Archer AX21

ASUS RT-AX55

The TP-Link Archer AX21 and the ASUS RT-AX55 are both Wi-Fi 6 routers. They perform similarly, but the ASUS delivers slightly better range and faster speeds overall.

Variants

Archer AX21 (Black)

RT-AX55 (Black)
RT-AX55 (White)

Review

See ASUS RT-AX55 Review

Check Price

Black

Archer AX21

Black

RT-AX55

Black

Archer AX21

B&H

White

RT-AX55

Black

Archer AX21

BestBuy.com

Black

Archer AX21

TP-Link

Black

Archer AX21

Walmart.com

Main Differences for

Apartment/Condo

Threshold

0.10

Apartment/Condo

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Full Comparison

Apartment/Condo

0.0

Multi-Level House

0.0

Gaming

0.0

Speed

0.0

Range

0.0

Latency

0.0

Design

Dimensions

N/A

Dimensions Photo

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

Height

Lock" (Lock cm)

Width

Lock" (Lock cm)

Depth

Lock" (Lock cm)

Depth With Cables

Lock" (Lock cm)

Network Ports

N/A

Ports Photo

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

WAN Port Speed

Lock Gbps

LAN Port Count

Lock

10 Gbps Ports

Lock

2.5 Gbps Ports

Lock

1 Gbps Ports

Lock

10 Gbps Ports (SFP+)

Lock

USB Ports

USB-A 3.0 Ports

Lock

USB-A 2.0 Ports

Lock

USB-C Ports

Lock

USB-C Speed

N/A

In The Box

In The Box Photo

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

Wall/Ceiling Mount

N/A

Mount Photo

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

Mount Type

Locked

Wi-Fi

Interior Short Range

N/A

Short Range Graph

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

Highest Speed

Lock Mbps

Average 5GHz Speed

Lock Mbps

Average 6GHz Speed

N/A

Test Configuration

Locked

Interior Long Range

N/A

Long Range Graph

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

Lowest Speed

Lock Mbps

Average 5GHz Speed

Lock Mbps

Average 6GHz Speed

N/A

Test Configuration

Locked

Wireless Latency

N/A

Latency Cumulative Distribution Function

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

5GHz Median Latency

Lock ms

5GHz Median Jitter

Lock ms

6GHz Median Latency

N/A

6GHz Median Jitter

N/A

Mesh Satellite Wireless Latency

N/A

Satellite Latency Cumulative Distribution Function

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

Satellite 5GHz Median Latency

N/A

Satellite 5GHz Median Jitter

N/A

Satellite 6GHz Median Latency

N/A

Satellite 6GHz Median Jitter

N/A

Wi-Fi Specifications

N/A

Multi Band

Locked

DFS Channels

Locked

6GHz Band

Locked

Wi-Fi Version

Locked

MU-MIMO

Locked

OFDMA Support

Locked

Beamforming

Locked

Tested Firmware Version

Locked

MLO Implementation

Beacon Frame

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

MLO Support

Locked

EMLSR/EMLMR Support

Locked

Max Number Of Simultaneous Links

Locked

TID-To-Link Mapping Negotiation Support

Locked

Wi-Fi Coverage

Indoor Coverage - Same Story

Wi-Fi Coverage Map

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

Indoor Coverage - 1 Story Above

Wi-Fi Coverage Map

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

Wi-Fi Coverage Map (Dual Mesh)

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

Broad Coverage

Outdoor Coverage Map

SAMPLE

for pictures & test results

SAMPLE

for pictures & test results

Check Price

Black

Archer AX21

Black

RT-AX55

Black

Archer AX21

B&H

White

RT-AX55