Unifying Receiver Wireless USB Dongle For Logitech PC Mouse keyboard 993-000439 | eBay
Amazon.com: USB Receiver Dongle Plug Compatible with Logitech G Pro Wireless Gaming Mouse (GPW 1) : Video Games
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Marcus Mengs on Twitter: "Logitech Unifying receiver fake. Bought 3 cheap Unifying CU0008 receivers (TI chip). Turner out, they all are CU0007 (Nordic) with wrong label and ALL HAVE THE SAME S/N