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
Logitech Receiver for Wireless Mouse M210 USB Dongle for sale online | eBay
Lost Dongle of Wireless Mouse & Keyboard Logitech? (Different Replacement Logitech Usb Receiver) - YouTube
Usb Receiver Replacement For Logitech Mk270 Mk345 Mk250 Nano Wireless Mouse Keyboard Combo Repair Parts Accessories - Instrument Parts & Accessories - AliExpress
Amazon.com: Logitech C-U0007 Unifying Receiver for Mouse and Keyboard Works with Any Logitech Product That Display The Unifying Logo (Orange Star, Connects up to 6 Devices) : Electronics
What can someone do if they've lost the wireless USB connector to their Logitech keyboard and mouse? - Quora