Wholesale Logitech USB Unifying Receiver Logitech Unifying Receiver 6 Channel and Nano Receiver for Logitech Wireless Mouse and keyboard From m.alibaba.com
Logitech M330 SILENT PLUS Wireless Optical Mouse with USB Nano Receiver Black 910-004905 - Best Buy
New New Usb Receiver Wireless Dongle Receiver Usb Adapter For Logitech Mk270/mk260/mk220/mk345/mk240/m275/m210/m212/m150 Mouse - Computer Cables & Connectors - AliExpress
As a computer guy that has picked up 10+ keyboards and mice without USB, this is an extremely helpful find : r/DumpsterDiving
Logitech Unifying USB Receiver for Wireless Mouse and Keyboard, 6-Device (910-005235) | Quill.com