Logitech 993-000523 USB Dongle Extender for sale online
List of Logitech products - Wikipedia
New Logitech Unifying USB Receiver for Mouse and Keyboard, (993
The Logitech Unifying Receiver is a tiny wireless receiver that can stay plugged into your notebook's USB port and lets you easily connect up to six compatible wireless mice and keyboards to the same receiver. There's no need to unplug it when you move around, so you won't have to worry about losing it. With a Logitech Unifying Receiver you get wireless freedom and convenience without the hassle of multiple receivers.
Logitech Unifying USB Receiver for Performance Mouse MX
Logitech Nano Receiver for Mk270 (non-unifying) for sale online
993-000439 Logitech Unifying receiver for mouse and keyboard with Unifying Logo The unifying receiver working with 6 mice and keyboards in the same
New Logitech Unifying USB Receiver for Mouse MX M905 M950 M505 M510 M525 M305 M310 M315 M325 M345 M705 M215
Logitech Unifying Receiver, 2.4 GHz Wireless
ALLOMN Bluetooth Receiver, 2.4GHz Ultra Stable Wireless Receiver
Logitech Replacement USB Unifying Receiver (6-in-1), NOTE! - This is a listing for 1 dongle only, the picture shows 2 dongles as there are two
Logitech Unifying USB Receiver 993-000439