Logitech Unifying Receiver for Connecting Multiple Devices
Logitech USB Unifying Receiver 58 H x 38 W x 14 D Black 910 005235 - Office Depot
Usb Receiver Wireless Dongle Adapter For Logitech G502 Lightspeed Wireless Mouse - Mice & Keyboards Accessories - AliExpress
Amazon.com: Logitech Unifying Receiver USB Dongle for Logitech M185 Wireless Mouse and Keyboard : Electronics
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) (C-U0007) : Electronics