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Small black USB stick with flip-out antenna, Bluetooth 5.4 adapter

SMA

SMA Z2#Q2546_B Bluetooth 5.4 USB Adapter

SKU CH-8Q3T-HZ4SQ

Adds Bluetooth 5.4 to Windows PCs with 5 Mbps speed, 20 m range and simultaneous connection of up to 7 devices

  • TypeBluetooth Adapter
  • Bluetooth 5.4 delivers up to 5 Mbps transfer rates for faster file sharing
  • Dual-mode BLE support cuts 2.4 GHz interference for more stable connections
  • External antenna reaches 66 feet or 20 metres for extended wireless range
  • Connect up to 7 devices simultaneously including speakers, keyboards and printers
  • Plug-and-play on Windows 11, 10 and 8.1 with driver install for Windows 7

Bluetooth 5.4 USB adapter for Windows PCs

The SMA Z2#Q2546_B adds Bluetooth 5.4 to desktops and laptops running Windows 11, 10, 8.1 or 7. It uses EDR technology for up to 5 Mbps transfer rates and supports dual-mode Low Energy operation. The adapter is not compatible with Mac OS, Linux, game consoles, car stereos or TVs.

Sustained multi-device connectivity

Up to seven different Bluetooth device types can stay connected at once, including keyboards, mice, speakers, headsets and printers. The external antenna helps maintain the Class 2 link over distances up to 66 feet or 20 metres, reducing drop-outs during extended sessions. Windows 7 requires manual driver installation from the supplied CD.

Low-power operation with minimal heat

Bluetooth 5.4 Low Energy keeps power draw small during continuous audio streaming or file transfers, so the dongle stays cool without active cooling. The USB-A plug draws power directly from the host port, eliminating the need for an external supply. Interference resistance in the 2.4 GHz band helps sustain stable throughput in busy environments.

Highlights

  • Bluetooth 5.4 delivers up to 5 Mbps transfer rates for faster file sharing
  • Dual-mode BLE support cuts 2.4 GHz interference for more stable connections
  • External antenna reaches 66 feet or 20 metres for extended wireless range
  • Connect up to 7 devices simultaneously including speakers, keyboards and printers
  • Plug-and-play on Windows 11, 10 and 8.1 with driver install for Windows 7

Specifications

BrandSMA
ModelZ2#Q2546_B
TypeBluetooth Adapter

Questions about this item

Does the SMA Z2#Q2546_B adapter get warm or draw much power when left plugged in all day?

The Bluetooth 5.4 dongle uses low-energy technology and draws minimal power from the USB port, so it stays cool during continuous use.

What operating system must I already have on my PC for the SMA Z2#Q2546_B to work without extra drivers?

Windows 11, 10 or 8.1 provide plug-and-play support; Windows 7 requires a manual driver install from the supplied CD.

Will the SMA Z2#Q2546_B talk to my older Bluetooth 2.0 headset and keyboard at the same time as newer gear?

Yes, the adapter is backwards compatible with Bluetooth 2.0 and can maintain up to seven simultaneous connections across different versions.

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