TP-Link

TP-Link Archer AX21

Expert rating7 / 10

WiFi Standard:: WiFi 6 (802.11ax)
Speed Class:: AX1800
Bands:: Dual-band
Ethernet Ports:: 4x Gigabit LAN, 1x Gigabit WAN
Positioning:: Budget WiFi 6

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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.

Manufacturer: TP-Link Last updated: September 11, 2026

TP-Link Archer AX21 Review

The Archer AX21 has become one of the most commonly recommended entry-level WiFi 6 routers, thanks to frequent deep discounting that puts genuine WiFi 6 features within reach of budget buyers.

The AX21 shows up regularly in budget router roundups and deal alerts, often discounted well below its already-modest list price, cementing its reputation as an accessible WiFi 6 starting point.

A Frequent Deal-Site Favorite

The AX21 shows up regularly in budget router roundups and deal alerts, often discounted well below its already-modest list price, cementing its reputation as an accessible WiFi 6 starting point.

AX1800 Basics Done Reliably

OFDMA and MU-MIMO support at a genuinely low price point make the AX21 a sensible upgrade from older WiFi 5 routers for buyers who don't need mesh coverage or multi-gig ports.

Comparison to Alternatives

Against the TP-Link Archer AX55 already on this site, the AX21 trails slightly in raw speed class but frequently costs less, especially during sales. Against the TP-Link Archer C7 covered in this batch, the AX21 offers the newer WiFi 6 standard at a similar budget price point.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating7 / 10

Genuine WiFi 6 basics at a price that's frequently discounted further.

Best for

Budget buyers who want genuine WiFi 6 features and frequently catch it on sale.

Not for

Larger households needing mesh coverage or multi-gig throughput.

Specifications

What these specs mean

Identity

Brand	TP-Link
Model Number	Archer AX21
Release Year	2020

Wireless

WiFi Standard	WiFi 6 (802.11ax)
Router Type	Standalone Router
Band Configuration	Dual-Band

Connectivity

Wired Ports	4x Gigabit LAN, 1x Gigabit WAN

Form and topology

Device Type	Standalone Router

Wireless standard

WiFi Generation	WiFi 6
Supports 6GHz	No
Aggregate WiFi Speed	1800 Mbps
Speed Class	AX1800

Radio capability

Max Channel Width	80MHz
Spatial Streams Total	4
5GHz Streams	2

Wired networking

WAN Port Speed	1GbE
Max LAN Port Speed	1GbE
LAN Port Count	4 ports

Coverage and capacity

External Antennas	4 antennas

Security and software

WPA3 Support	Yes
VPN Server	Yes

FAQs

What are the key specifications of the TP-Link Archer AX21 (WiFi 6/Standalone Router/Dual-Band AX1800/Budget Favorite)?

The TP-Link Archer AX21 (WiFi 6/Standalone Router/Dual-Band AX1800/Budget Favorite) is a router from TP-Link. Key specs: WiFi Standard WiFi 6 (802.11ax), Speed Class AX1800, Bands Dual-band, Ethernet Ports 4x Gigabit LAN, 1x Gigabit WAN, Positioning Budget WiFi 6.

Will the TP-Link Archer AX21 (WiFi 6/Standalone Router/Dual-Band AX1800/Budget Favorite) work with my current setup?

The TP-Link Archer AX21 (WiFi 6/Standalone Router/Dual-Band AX1800/Budget Favorite) lists WiFi Standard is WiFi 6 (802.11ax). Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the TP-Link Archer AX21 (WiFi 6/Standalone Router/Dual-Band AX1800/Budget Favorite) best suited to?

Best suited to: Budget buyers who want genuine WiFi 6 features and frequently catch it on sale.

What are the drawbacks of the TP-Link Archer AX21 (WiFi 6/Standalone Router/Dual-Band AX1800/Budget Favorite)?

Not the best fit for: Larger households needing mesh coverage or multi-gig throughput.