Description

Product Description

The TP-Link UB400 Bluetooth Nano USB Adapter is a compact and easy-to-use solution that enables Bluetooth connectivity on desktop PCs and laptops without built-in Bluetooth support. It uses Bluetooth 4.0 technology with Low Energy (BLE) for stable, efficient wireless communication with various devices.

With its ultra-small nano design, the UB400 can remain plugged into a USB port without blocking adjacent ports, making it ideal for both laptops and desktop systems. It supports a wide range of Bluetooth devices including headphones, speakers, keyboards, mice, printers, and game controllers.

The adapter supports plug-and-play functionality on Windows 8/8.1/10/11, while older systems may require driver installation. It ensures reliable short-range wireless connectivity with low power consumption and stable performance for everyday use.

Note: The official TP-Link UB400 model is Bluetooth 4.0 (not 5.3). Newer TP-Link models like UB500/UB5A support Bluetooth 5.x.

Key Features

• Nano USB Bluetooth adapter for PC & laptop
• Bluetooth 4.0 with Low Energy (BLE) support
• Ultra-compact plug-and-leave design
• Connects multiple Bluetooth devices (headphones, mouse, keyboard, etc.)
• Stable short-range wireless connectivity
• Plug-and-play on Windows 10/11 (driver support varies)
• Low power consumption
• Supports up to multiple Bluetooth peripherals
• Easy setup and portable design
• Compatible with most Windows systems

Technical Specifications

Bluetooth

• Version: Bluetooth 4.0
• Technology: Low Energy (BLE)
• Backward compatibility: Bluetooth 3.0 / 2.1 / 2.0 / 1.1

Interface

• USB 2.0

Range

• Up to ~10 meters (environment dependent)

Device Support

• Headphones / Earbuds
• Keyboard & Mouse
• Game Controllers
• Printers
• Smartphones & Tablets (file transfer)

System Compatibility

• Windows 7 / 8 / 8.1 / 10 / 11
• Driver required for older Windows versions

Design

• Nano-sized USB form factor
• Plug-and-stay compact design

Power & Performance

• Low energy consumption
• Stable short-range wireless communication

Use Cases

• Adding Bluetooth to desktop PCs
• Connecting wireless headphones or speakers
• Using Bluetooth keyboard/mouse setups
• Gaming controllers for PC
• File transfer between devices
• Office and home wireless peripherals