Amazon.com: Replacement Receiver for Logitech G703 : Electronics
Logitech Unifying Receiver for Connecting Multiple Devices
Original usb receiver usb Bluetooth Signal Receiver adapter for Logitech G903 G403 G900 G703 G603 G602 Wireless Mouse Adapter|Replacement Parts & Accessories| - AliExpress
Replacement Unifying Receiver for Logitech Wireless Mouse M510 Sh | eBay
What can someone do if they've lost the wireless USB connector to their Logitech keyboard and mouse? - Quora