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Two tiny black USB-A Bluetooth 4.0 dongles side by side

TP-Link

TP-Link UB400 2P Bluetooth 4.0 USB Adapter 2 Pack

SKU CH-QKMJ-EN0DB

Adds Bluetooth 4.0 to Windows PCs via USB Type-A 2.0 with 65-foot range in a two-pack

  • Product typeBluetooth Adapter
  • Product colorBlack
  • Drivers-free setup on Windows 10, 8.1, 8, 7 and XP
  • Add Bluetooth to any PC with USB Type-A 2.0
  • Bluetooth 4.0 LE with backwards compatibility to 3.0, 2.1, 2.0 and 1.0
  • Up to 65 ft wireless range for headsets and speakers
  • Ultra-small nano design suits home and travel use

Add Bluetooth to Windows PCs

This TP-Link UB400 two-pack adds Bluetooth 4.0 LE to any Windows desktop or laptop through a USB Type-A 2.0 port. Each nano-sized adapter installs without extra drivers on Windows 10, 8.1, 8, 7 and XP. The ultra-small design stays flush with the port for easy travel or permanent use.

Ideal for mice, keyboards, headsets and controllers

It suits anyone who needs wireless connections for mice, keyboards, printers, headsets, speakers or PS4 and Xbox controllers. Buyers whose devices require a newer Bluetooth version than 4.0 will not be served by this adapter.

Bluetooth 4.0 LE with 65-foot range

The single deciding specification is Bluetooth 4.0 LE, which provides a wireless range of up to 65 feet for lossless audio streaming. This version determines whether your peripherals will pair and perform as expected.

How it compares

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

Price $24.99
Pricier than about 63% of the 1,565 comparable items (median $18.99).

Specifications

Product
Brand nameTP-Link
Model nameTP-Link UB400 2P
Product typeBluetooth Adapter
Product colorBlack

Questions about this item

How far can I expect a stable Bluetooth 4.0 connection with the UB400?

The adapter supports up to 65 feet of wireless range, so you can use headsets or speakers across a typical room without staying next to the PC.

What USB standard does the UB400 use and does it limit speed?

It plugs into a USB Type-A 2.0 port; the interface caps at 2.0 speeds but is fully sufficient for Bluetooth 4.0 data rates.

How much space does the nano adapter occupy once inserted?

The ultra-small design leaves only a tiny protrusion, so it fits flush against laptops or desktops without blocking adjacent ports.

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