Why you should really, really update your Logitech wireless dongle - The Verge
Logitech M570 Wireless Trackball Mouse – Ergonomic Design with Sculpted Right-Hand Shape, Compatible with Apple Mac and Microsoft Windows Computers, USB Unifying Receiver, Dark Gray - Newegg.com
Logitech Wireless Optical Mouse With Nano Receiver M317 - Black : Target
Amazon.com: Logitech C-U0007 Unifying Receiver for Mouse and Keyboard Works with Any Logitech Product That Display The Unifying Logo (Orange Star, Connects up to 6 Devices) (C-U0007) : Electronics
Logitech Silent Wireless Mouse, 2.4 GHz with USB Receiver, Ambidextrous, Lavender - Walmart.com
Logitech USB Unifying Receiver 58 H x 38 W x 14 D Black 910 005235 - Office Depot
Replacement USB Receiver for Logitech Wireless Mouse/Keyboard | eBay
Wireless Dongle Receiver USB Adapter for Logitech Mouse Keyboard Connect | eBay
Wireless Dongle Receiver Usb Adapter For Logitech Unifying Mouse Connect Mx M905 M950 M505 M510 M525 Etcm235, M280, M310, M310t - Pc Hardware Cables & Adapters - AliExpress