Pairing the Logitech Performance MX (and others) to the Unifying Receiver in GNU/Linux | Fabián Rodríguez, « MagicFab »
Amazon.com: Logitech USB Unifying Receiver, 2.4 GHz Wireless Technology, USB Plug Compatible with all Logitech Unifying Devices like Wireless Mouse and Keyboard, PC / Mac / Laptop - Black : Electronics
Solaar' Lets You Manage Logitech's Unifying Receiver on Linux - OMG! Ubuntu!
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Logitech Unifying receiver - Wikipedia
Can I downgrade Logitech K375s keyboard firmware? And is there a way to backup the current firmware on the keyboard before I do so? · Issue #2044 · fwupd/fwupd · GitHub