Genuine Logitech Unifying Receiver-Wireless Mouse/Keyboard USB Dongle-6 Devices | eBay
Zone Wireless Plus Unifying + Audio Receiver
Marcus Mengs on Twitter: "Logitech Unifying receiver fake. Bought 3 cheap Unifying CU0008 receivers (TI chip). Turner out, they all are CU0007 (Nordic) with wrong label and ALL HAVE THE SAME S/N
Logitech Unifying Receiver for Connecting Multiple Devices
SOLVED: USB for wireless Logitech keyboard lost. - Logitech Harmony Smart Keyboard - iFixit