Sonnet USB-BT4 interface cards/adapter Bluetooth

Long-range USB Bluetooth 4.0 Micro Adapter
Enhances Bluetooth Performance of xMac mini Server, xMac Studio, RackMac mini, DuoModo xMac mini Module, and Mac and Windows computers
For any Mac mini® user who mounted their computer in one of Sonnet’s Mac mini rackmount solutions, improving your computer’s Bluetooth® performance is simple — plug in a Sonnet Long-Range USB Bluetooth 4.0 Micro Adapter. Connected to the front panel USB port, this adapter moves your Bluetooth connection to outside the enclosure, enabling better performance with mice, keyboards, headsets, speakers, printers, phone, tablet, and other Bluetooth devices.

Strong Signal. Small Size.
Sonnet’s Long-Range USB Bluetooth 4.0 Micro Adapter is so small that it almost disappears when you plug it in. Because of its tiny size, you can safely leave it plugged into your computer or Sonnet Mac mini rackmount solution during transport. Despite its size, the adapter can support receive and send ranges of up to 50 meters (165 feet), allowing greater flexibility in connecting your devices.

Supports Up to Seven Devices Simultaneously at Up to 3Mbps
Sonnet’s Long-Range USB Bluetooth 4.0 Micro Adapter is so small that it almost disappears when you plug it in. Because of its tiny size, you can safely leave it plugged into your computer or Sonnet Mac mini rackmount solution during transport. Despite its size, the adapter can support receive and send ranges of up to 10 meters (30 feet), allowing greater flexibility in connecting your devices.