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Sonnet Long-Range USB Bluetooth 4.0 Micro Adapter

BH #SOUSBBT4 • MFR #USB-BT4
1 review
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Sonnet Long-Range USB Bluetooth 4.0 Micro Adapter
Key Features
  • Bluetooth 4.0 LE
  • USB-A Host Connection
  • Up to 165' Range
  • Micro-Size Adapter
For any Mac mini user who mounted their computer in one of Sonnet's 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 the outside of the enclosure, enabling better performance with mice, keyboards, headsets, speakers, printers, phones, tablets, and other Bluetooth devices.
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Sonnet USB-BT4 Overview

For any Mac mini user who mounted their computer in one of Sonnet's 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 the outside of the enclosure, enabling better performance with mice, keyboards, headsets, speakers, printers, phones, tablets, 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 reception and transmission ranges of up to 165 feet, allowing greater flexibility in connecting your devices.
  • Extends Bluetooth range for Sonnet's Mac mini rackmount solutions
  • Broad Device Support
  • Supported in Macs running macOS 10.12+ and in computers running Windows 11 or 10
  • Supports wireless music streaming
  • Micro-size Adapter
  • Extended transmission range up to 165 feet
  • Supports seven devices simultaneously
  • Enhanced data rate (EDR) support
  • Bluetooth low energy (BLE) support
    • UPC: 732311013386

    Sonnet USB-BT4 Specs

    Key Specs
    System Connection
    USB-A
    Bluetooth
    Bluetooth 4.0 LE
    OS Compatibility
    macOS 10.12 to 10.14
    Windows 10 to 11
    General
    System Connection
    USB-A
    Bluetooth
    Bluetooth 4.0 LE
    OS Compatibility
    macOS 10.12 to 10.14
    Windows 10 to 11
    Performance
    Encryption
    No
    Wireless Range
    Bluetooth
    164' / 50 m 
    Packaging Info
    Package Weight
    0.025 lb
    Box Dimensions (LxWxH)
    4.45 x 3.65 x 0.55"

    Sonnet USB-BT4 Reviews

    High Hopes, Low Performance

    By Brian
    Rated 1 out of 5
    Date: 2026-01-07

    I really wanted to like this, but it was simply not meant to be. M2 Mac Mini on Sonoma 14.6.1 in a Sonnet Rack Mac enclosure in a rack, so this should be just what the doctor ordered, right? Not so fast. The idea was to use a secondary bluetooth keyboard and mouse at an extended location about 20' away where the signal is just low enough that signal is a little intermittent. However, a couple red flags popped up after it arrived - although the packaging says Mac OS 10.12+, when I went to download drivers from Sonnet their website says "Not compatible with macOS 15+". The packaging states "Supports 7 devices simultaneously", but I could not get more than 2 to connect. In addition, after following the installation instructions, Airdrop to/from other Mac/iOS devices no longer worked. I reached out to Sonnet support, and although they were very responsive they were not able to provide a solution. Although the other Sonnet accessories I own (RackMac, Thunderbolt AVB adapter) work great with no issues, this bluetooth extender does not seem to meet the usual Sonnet standard.

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