TP-Link UB400 Bluetooth-Adapter 4.0 Nano USB

Description:

The TP‑Link UB400 Bluetooth 4.0 Nano USB Adapter is a compact, plug-and-play solution that adds Bluetooth capability to desktops, laptops, and other USB-enabled devices. Featuring Bluetooth 4.0 with Low Energy, it supports backward compatibility with older standards and allows pairing with up to seven devices—such as headphones, speakers, keyboards, and mice. Its ultra-small dimensions (approximately 15 × 7 × 19 mm) make it discreet and travel-friendly, ideal for staying plugged in without blocking other ports.

With a reliable transmission range of about 10 meters (≈33 feet), it offers effective wireless performance for audio streaming, file transfers, and calls. Compatible with Windows platforms (XP/7/8/10/11) and also usable with Linux and macOS with drivers, the UB400 is driver-free on newer Windows systems. It supports essential Bluetooth profiles including A2DP, AVRCP, HID, and HSP/HFP.

Note: Some users report limitations such as reduced audio quality when using headset microphones or connecting multiple devices simultaneously. Performance may vary depending on distance, USB port placement, and Bluetooth version of connected devices.