TP-Link Archer AX21 (AX1800) WiFi 6 Router: full spec sheet and buying guide
The TP-Link Archer AX21 is one of the most popular affordable WiFi 6 routers, a common upgrade from the basic router many internet providers supply. At the time of writing it holds a 4.4/5 average from more than 24,742 Amazon ratings.

Dual-band WiFi 6 with 1.8 Gbps total bandwidth, OFDMA for many devices, beamforming and four high-gain antennas at a budget price.
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Speed and capacity
TP-Link lists AX1800 dual-band WiFi 6: up to 1200 Mbps on 5 GHz and 574 Mbps on 2.4 GHz. OFDMA lets it send data to more devices at the same time, which helps busy homes with phones, TVs and smart devices. Real speeds depend on your internet plan, distance and walls.
Coverage and setup
Beamforming and four high-gain antennas focus signal toward your devices. Like all standalone routers, it needs a separate modem (or your provider's gateway). It's dual-band, so it doesn't support the 6 GHz band used by WiFi 6E.
Strengths based on its spec sheet
- Affordable WiFi 6
- OFDMA for many devices
- Four antennas with beamforming
- Very popular, lots of user reviews
What to consider before buying
- Requires a separate modem
- No 6 GHz band (not WiFi 6E)
- Coverage limited for large, multi-story homes
Want to compare this product with other computing options? Check out our computing buying guide.
Who is it ideal for?
Apartments and small to medium homes upgrading from an old or provider-supplied router.
Who is it NOT the best option for?
For large homes with dead zones, a mesh system like the TP-Link Deco X55 covers more area; compare them in our computing buying guide.
Frequently asked questions
Does the Archer AX21 include a modem?
No, it's a router only and needs a separate modem or gateway.
What speeds does it support?
AX1800: up to 1200 Mbps on 5 GHz and 574 Mbps on 2.4 GHz.
Is it WiFi 6E?
No, it's dual-band WiFi 6 without the 6 GHz band.

Is the TP-Link Archer AX21 (AX1800) WiFi 6 Router the right fit for you?
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