The Lenovo 2.4G Wireless USB Receiver is the perfect and cost-efficient replacement for a lost Lenovo Professional Mouse Keyboard or Combo USB receiver. Easy to pair with supported devices just press the pairing button and the mouse or keyboard is usable within seconds.N/AN/ACompatible with:N/ALenovo Professional Wireless Keyboard & Mouse Combo (4X30H56796)N/ALenovo Professional Wireless Keyboard (4X30H56841)N/ALenovo Professional Wireless Laser Mouse (4X30H56886)