Amazon.com: StarTech.com USB Bluetooth 5.0 Adapter, USB Bluetooth Dongle for PC/Computer/Laptop/Keyboard/Mouse, BT 5.0 Adapter for Headsets, Mini USB Bluetooth Receiver, Windows/Linux (USBA-BLUETOOTH-V5-C2) : Everything Else
Logitech C-UV35 USB Bluetooth Receiver for Mouse Keyboard MX5000 MX5500 | eBay
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Logitech Bluetooth USB Receiver for diNovo Edge Mini MX5500 (993-000168) | eBay