Amazon.com: New Logitech Unifying USB Receiver for Mouse MX M905 M950 M505 M510 M525 M305 M310 M315 M325 M345 M705 M215 : Electronics
Logitech Usb Unifying Receiver Logitech Unifying Receiver 6 Channel And Nano Receiver For Logitech Wireless Mouse And Keyboard - Buy Logitech Usb Unifying Receiver,Usb Mouse Receiver,Usb Nano Receiver Product on Alibaba.com
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
Logitech USB Unifying Receiver for Wireless Keyboard/Mouse | Dell USA