Logitech MK540 Advanced Wireless Keyboard and Mouse - Black | Dell USA
Amazon.com: Logitech Unifying Receiver USB Dongle for Logitech M185 Wireless Mouse and Keyboard : Electronics
Zone Wireless Plus Unifying + Audio Receiver
Logitech Compact Wireless Mouse, 2.4 GHz with USB Unifying Receiver, 1000 DPI Optical Tracking, 18-Month Life Battery, PC / Mac / Laptop / Chromebook, Blue - Yahoo Shopping
Logitech Wireless Keyboard and Mouse Combo MK270 - 2.4GHz, Unifying Nano Receiver, Extended Battery Life
Logitech M317 Wireless Mouse with USB Unifying Receiver Black | Oriental Trading
Logitech Wireless Mouse m317 with Unifying Receiver, Black (910-003416) - Newegg.com
Logitech Productivity Plus Wireless Mouse, 2.4 GHz USB Unifying Receiver, 1000 DPI, Dark Gray - Walmart.com
LOG910002650 - Logitech M325 Wireless Mouse, 2.4 GHz with USB Unifying Receiver, 1000 DPI Optical Tracking, 18-Month Life Battery, PC / Mac / Laptop / Chromebook (NEW BLUE) - Optical - Wireless -
Logitech Unifying Receiver for Connecting Multiple Devices
What is Unifying? - Logitech
Amazon.com: Logitech USB Unifying Receiver, 2.4 GHz Wireless Technology, USB Plug Compatible with all Logitech Unifying Devices like Wireless Mouse and Keyboard, PC / Mac / Laptop - Black : Electronics