USB Bluetooth Adapter Unitek B105B — USB 2.0 Type-A, BLE v5.3, 3 Mbit/s, Black, Plug-and-Play

The UNITEK USB Bluetooth Adapter B105B uses Bluetooth 5.3 with Enhanced Data Rate (EDR) and Bluetooth Low Energy to provide improved data transmission while keeping power consumption low. The adapter features a wired USB interface, supports dual-mode backward compatibility with Bluetooth 4.0/4.2/5.0/5.1/5.3, and offers a maximum data transfer rate of 3 Mbit/s in a compact black design.

Advantages

The adapter combines Bluetooth 5.3+EDR and BLE for faster data rates and efficient power use, while maintaining backward compatibility with earlier Bluetooth versions. Its USB host interface ensures simple plug-and-play connection to PCs and compatible devices. The compact black housing provides a discreet and durable solution for adding Bluetooth connectivity.

Suitable for

• Connecting wireless peripherals (keyboards, mice, headsets) to a computer
• Enabling Bluetooth file transfer and audio streaming on devices lacking built-in Bluetooth
• Pairing mobile devices and IoT peripherals that support BLE

Key specifications

• Brand: Unitek
• Model (MPN): B105B
• Interface: USB (wired)
• Bluetooth version: 5.3 with EDR and Bluetooth Low Energy
• Backward compatibility: Bluetooth 4.0 / 4.2 / 5.0 / 5.1 / 5.3 (dual mode)
• Maximum data transfer rate: 3 Mbit/s
• Colour: Black
• EAN: 4894160050502

How to use

Insert the UNITEK B105B adapter into an available USB port on your computer. Allow the operating system to detect and install any required drivers automatically, or install drivers supplied by the device manufacturer if prompted. After installation, use the system Bluetooth settings to search for and pair compatible devices. For BLE devices, follow the peripheral’s pairing instructions.

Recommendations

Place the adapter in an unobstructed USB port for optimal signal strength, avoid nearby sources of interference (large metal objects or other wireless transmitters), and keep device firmware and drivers up to date to ensure reliable Bluetooth 5.3+EDR performance.