Logitech S510 Cordless Wireless Keyboard Y-RAK73 with Receiver | eBay
Logitech S510 Wireless Keyboard Y-RAK73 - WITHOUT RECEIVER | eBay
Logitech S510 Wireless Keyboard Y-RAK73 - With RECEIVER Works great! 141291050609 | eBay
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