Logitech Wireless Unifying USB Receiver Dongle for Keyboard & Mice

Genuine Logitech Non Unifying USB Receiver Adapter for Mouse and Keyboards

Logitech Wireless Unifying USB Receiver Dongle for Keyboard & Mice

Replacement Logitech Unifying USB Receiver Dongle for Wireless Mouse / Keyboard

Logitech Unifying USB Receiver PN 993-000439

Logitech Unifying USB Receiver PN 993-000439 Wireless Mouse and Keyboard

Logitech - USB Unifying Receiver 910-005933