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#31
I was just recently shopping for a Bluetooth dongle. I'm a novice when it comes to this stuff. You undoubtedly no more about this that I do. I don't know if this will help, but I ran across a few general disclaimers regarding USB 2.0 vs USB 3.0 ports, radio interferance, etc.
see "Range, Compatibility, and FAQ
Amazon.com: Plugable USB Bluetooth 4.0 Low Energy Micro Adapter (Compatible with Windows 10, 8.1, 8, 7, Raspberry Pi, Linux Compatible, Classic Bluetooth, and Stereo Headset Compatible): Computers & Accessories