Sonnet Long-Range USB Bluetooth 4.0 Micro Adapter

Sonnettech Long-Range USB Bluetooth 4.0 Micro Adapter

Sonnettech Long-Range USB Bluetooth 4.0 Micro Adapter delivers compact, reliable Bluetooth connectivity for Macs and Windows computers. The micro-size USB Type A adapter remains unobtrusive when plugged in—ideal for systems and Sonnet Mac mini rackmount solutions where space and transportability matter. Despite its tiny footprint, it extends Bluetooth range up to 50 meters (165 feet) and supports simultaneous connections to up to seven devices, making it suitable for wireless audio streaming, peripheral connections, and multi-device setups.

Built on the Broadcom BCM20702 chipset with Bluetooth 4.0 and BLE support, the adapter offers Enhanced Data Rate (EDR) up to 3 Mbps and broad backward compatibility with older Bluetooth versions. It includes a 2-year warranty and free lifetime technical support for added peace of mind. Note: macOS support is limited to macOS 13 and 14; this adapter is not compatible with macOS 15 or later, and it does not support Apple Magic Keyboard with Touch ID.

Features and Benefits

• Extends Bluetooth range for Sonnet Mac mini rackmount solutions (up to 50 meters / 165 feet)
• Broad device support and backward compatibility with older Bluetooth versions
• macOS and Windows compatible — macOS 13–14; Windows 10 and 11
• Supports wireless music streaming
• Micro-size adapter that can remain plugged in during transport
• Supports up to seven devices simultaneously
• Enhanced Data Rate (EDR) support — up to 3 Mbps
• Bluetooth Low Energy (BLE) support
• 2-year product warranty and free lifetime customer technical support

What's in the box

• Sonnet Long-Range USB Bluetooth 4.0 Micro Adapter

Specification

• Part Number: USB-BT4
• Warranty: 2-year
• Form Factor: USB Type A adapter
• Bus Interface: USB 3.2 Gen 1
• External Connectors: USB Type A
• Chip: Broadcom BCM20702
• Standards: Bluetooth 4.0, Bluetooth Low Energy (BLE)
• Transmission Range: Up to 50 meters (165 feet)
• Data Rate: Enhanced Data Rate (EDR) 3 Mbps
• Dimensions (WxDxH): 0.62 x 0.87 x 0.25 in. (15.9 x 22.2 x 6.3 mm)
• Compliance: FCC/CE; RoHS 3 Directive 2015/863; IEC62368-1 and IEC62368-2 Safety
• Package Contents: Sonnet Long-Range USB Bluetooth 4.0 Micro Adapter
• Product Documentation - Product manual (PDF)
• Drivers: Download

Compatibility

Device Compatibility:

• Mac: Mac with USB Type A ports; Mac with USB Type-C ports when used with a USB-C male to USB-A female adapter (sold separately)
• Windows PC: Computer with USB Type A ports; Computer with USB Type-C ports when used with a USB-C male to USB-A female adapter (sold separately)

Mac OS Compatibility:

• macOS 13 (Ventura)
• macOS 14 (Sonoma)

PC OS Compatibility:

• Windows 10
• Windows 11

Important Incompatibilities & Notes:

• Not compatible with macOS 15 or later.
• Not compatible with Apple Magic Keyboard with Touch ID.
• Bluetooth 4.2 and 5 device features may be limited when used with this Bluetooth 4.0 adapter.
• Effective ranges depend on device and environmental factors (walls, obstacles).

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