As a computer guy that has picked up 10+ keyboards and mice without USB, this is an extremely helpful find : r/DumpsterDiving
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CU0010 2.4GHz Transceiver User Manual C-U0010 & M-R0031 Manual Logitech Far East
Nano Receiver USB for Logitech Mouse C-U0007 C-U0010 U0008 Non-Unifying | Okazii.ro