SOLVED: USB for wireless Logitech keyboard lost. - Logitech Harmony Smart Keyboard - iFixit
Amazon.com: SummitLink Unifying Receiver for Mouse and Keyboard Compatible for Any Logitech Product That Display The Unifying Logo (Orange Star, Connects up to 6 Devices) B083J7DYDT : Electronics
Installation - Logitech Wireless Desktop S510 Media Remote Review - Page 3 - Overclockers Club
Logitech Unifying Receiver for Connecting Multiple Devices