Amazon.com: Logitech Unifying Receiver for Mouse and Keyboard (Renewed) … : Electronics
Logitech K270 Wireless Keyboard for Windows, 2.4 GHz Wireless, Full-Size, Number Pad, 8 Multimedia Keys, 2-Year Battery Life, Compatible with PC, Laptop - Walmart.com
Logitech USB Unifying Receiver Dongle for Mouse & Keyboard 910-005235 (2 Pack) - Walmart.com
Logitech K750 Wireless Solar Keyboard for Windows, 2.4GHz Wireless with USB Unifying Receiver, Ultra-Thin, Compatible with PC, Laptop - Black - Newegg.com