Logitech Unifying Vs Non-Unifying Receiver (software in description) - YouTube
Amazon.com: Logitech 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
Logitech M510 Wireless Computer Mouse – Comfortable Shape with USB Unifying Receiver with Back/Forward Buttons and Side-to-Side Scrolling Blue 910-002533 | Fast Server Corp. www.srvfast.com
Logitech USB Dongle Extender - Works with Unifying Receiver
Logitech USB Unifying Receiver Dongle for Mouse & Keyboard 910-005235 (Two Pack) | eBay
Logitech USB Unifying Receiver 910-005235 B&H Photo Video
Zone Wireless Plus Unifying + Audio Receiver
Logitech USB Unifying Receiver Dongle for Mouse & Keyboard 910-005235 (10 Pack) - Walmart.com
Logitech USB Unifying Receiver Dongle for Mouse & Keyboard 910-005235 (5 Pack) - Walmart.com