Logitech S 510 Cordless Keyboard ONLY (MODEL: Y-RAK73) 820-000314 *NO RECEIVER* | 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