Logitech MK365 Keyboard and Mouse Combo 2.4GHz 1000DPI Unifying Receiver USB RF Wireless Ergonomical -Black,Black/Red,Black/Silver - Newegg.com
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