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Black USB Wi-Fi 6 adapter with two adjustable high-gain antennas and a status LED

TP-Link

TP-Link Archer TX20U plus AX1800 Wi-Fi 6 USB Adapter

SKU CH-S3AY-7Q3WX MPN Archer TX20U plus

Adds Wi-Fi 6 to a PC via USB 3.0 with dual high-gain antennas and AX1800 speeds

  • Wi-Fi standardWi-Fi 6
  • Supported standardsIEEE 802.11a/b/g/n/ac/ax
  • Wireless speedAX1800 / Up to 1.8 Gbit/s
  • Security featuresWEP, WPA/WPA2/WPA3, WPA-PSK/WPA2-PSK
  • Radio bands2.4 GHz / 5 GHz
  • Indicator lightsStatus
  • Stream flawless video with 1800 Mbps Wi-Fi 6 speeds
  • Connect on 2.4 GHz or 5 GHz for the best signal
  • Reach farther with two high-gain dual-band antennas
  • Keep fast speeds when many devices share the network with MU-MIMO
  • Cut latency for calls and games on busy networks with OFDMA

Wi-Fi 6 USB adapter for desktop PCs

The TP-Link Archer TX20U plus is a USB wireless adapter that brings Wi-Fi 6 performance to a desktop or laptop. It supports dual-band operation at 2.4 GHz and 5 GHz with a combined data rate of up to 1800 Mbps. The device includes two high-gain antennas and a one-meter USB 3.0 cable for flexible placement.

Driver setup and antenna placement

Installation requires plugging the adapter into a USB 3.0 port and installing the driver on Windows 10 or 11. The external antennas screw onto the base and should be oriented vertically for best signal. A common issue is using a USB 2.0 port, which limits throughput to a fraction of the rated speed.

Port and operating system check

Verify that your computer has an available USB 3.0 Type-A port and runs Windows 10 or 11. The adapter does not support Linux or macOS according to the listed requirements. Ensure your router broadcasts on the 5 GHz band to use the higher 1201 Mbps link rate.

How it compares

Measured against everything we stock in Wi-Fi Cards & USB Adapters, at today’s prices. Recalculated every night.

Price $22.99
Pricier than about 60% of the 1,565 comparable items (median $18.99).

Specifications

Product
Brand nameTP-Link
Model nameArcher TX20U plus
Product typeUSB Wi-FI Adapter
Product colorBlack
Connectivity
Wi-Fi standardWi-Fi 6
Supported standardsIEEE 802.11a/b/g/n/ac/ax
Wireless speedAX1800 / Up to 1.8 Gbit/s
Radio bands2.4 GHz / 5 GHz
Transmit power5 GHz: 19dBm(FCC) /16dBm(CE) (EIRP)
2.4 GHz: 19dBm(FCC) / 14.5dBm(CE) (EIRP)
Antenna configuration2 x High-Gain Dual-Band Antennas
Size & build
Product dimensions3.3 in × 6.2 in × 0.76 in
Shipping weight0.18 kg
Package size203 × 152 × 51 mm
In the box
In the boxAX1800 Dual Antennas High Gain Wireless USB Adapter
Archer TX20U Plus
Quick Installation Guide
1-meter USB 3.0 Cable
Environment & compliance
Temperature rangeOperating Temperature: 0 °C to 40 °C (32 °F to 104 °F)
Humidity rangeOperating Humidity: 10%~90% non-condensing
Storage Humidity: 5%~90% non-condensing
More details
Security featuresWEP, WPA/WPA2/WPA3, WPA-PSK/WPA2-PSK
Indicator lightsStatus

Questions about this item

How can I confirm the Archer TX20U plus is delivering the 1201 Mbps 5 GHz link after setup?

Connect the adapter via the included 1-meter USB 3.0 cable, install the driver on Windows 10 or 11, then check the wireless link speed in the OS network status or TP-Link utility — it should show up to 1201 Mbps on the 5 GHz band when associated with a compatible Wi-Fi 6 router.

What comes in the box and is any extra cable or antenna purchase required?

The package contains the Archer TX20U plus adapter with two fixed high-gain dual-band antennas, a quick installation guide and a 1-meter USB 3.0 cable; no additional cables or antennas are needed.

Which version of the Archer TX20U plus should I choose for the 1800 Mbps AX1800 rating?

The model listed is the single AX1800 version (1201 Mbps on 5 GHz + 574 Mbps on 2.4 GHz) with dual high-gain antennas and USB 3.0 — there are no other capacity or version options for this MPN.

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