TP-Link UB400 Bluetooth 4.0 Nano USB adapter USB 2.0 0.58×0.27×0.74 in Black

TP-Link UB400 is a Bluetooth 4.0 Nano USB adapter with a USB 2.0 interface that allows easy connection of Bluetooth headphones, mice, keyboards, and other devices to a computer, while maintaining an ultra-compact form factor that barely protrudes from the USB port.

Key Advantages

• Bluetooth 4.0 technology → efficient wireless connection with low power consumption and improved stability

• Backward compatibility → works with Bluetooth 3.0/2.1/2.0/1.1 devices

• USB 2.0 interface → simple connection to any USB port without special adapters

• Nano size → discreet and compact adapter that remains almost permanently in the USB port

• Plug-and-play configuration → minimal setup required for operation (Windows 8/8.1/10 automatically)

• Wide OS support → compatible with Windows 11/10/8.1/8/7/XP

• Stable transmission range → Bluetooth connection operates reliably at a good distance from the computer

• Low power consumption → reduced battery usage on laptops

Technical Specifications

• Type → Bluetooth Nano USB adapter

• Model → TP-Link UB400

• Bluetooth version → Bluetooth 4.0 with Low Energy (BLE)

• Interface → USB 2.0 Type-A

• Frequency → 2.4 GHz Bluetooth

• Max. number of devices → multiple Bluetooth devices (depending on OS)

• Dimensions (W×D×H) → 0.58 × 0.27 × 0.74 inches (14.8 × 6.8 × 18.9 mm)

• Color → black

• Operating temperature → 0 °C to 40 °C

• Safety certifications → FCC, CE, RoHS

• System requirements → Windows 11/10/8.1/8/7/XP

Compatibility

• Compatible with → Bluetooth-enabled devices: headphones, mice, keyboards, speakers, game controllers, etc.

• Compatible with → Windows desktop and laptop computers with a USB port

• Not compatible with → devices without a USB port or without Bluetooth support

How to Use

• Connect the UB400 to a USB port on a computer or laptop

• Install drivers if they are not installed automatically (Windows 7/XP)

• Turn on the Bluetooth device you want to connect

• Select the device in Bluetooth settings and connect via the OS panel

• Manage the connection through the operating system Bluetooth settings menu

Why Choose This Product
TP-Link UB400 is a simple and effective solution for adding Bluetooth functionality to a computer, providing stable wireless connectivity, low power consumption, and broad device support in a compact nano format. It is suitable for systems without built-in Bluetooth as well as for improving connection reliability in everyday use.

Real-World Usage Scenarios

• Connecting Bluetooth headphones to a computer for wireless audio streaming

• Connecting a wireless keyboard and mouse to a desktop or laptop

• Connecting game controllers in Bluetooth mode

• Transferring files from a computer to Bluetooth devices

• Connecting Bluetooth speakers for multimedia playback

Package Contents

• TP-Link UB400 Bluetooth 4.0 Nano USB Adapter

• Quick installation guide

About the Brand
TP-Link is a global manufacturer of networking and wireless connectivity technologies, specializing in reliable, user-friendly adapters and network peripheral solutions, combining modern technology with broad compatibility for home and office environments.