IBM/Lenovo ThinkPad X4 Series docking station 250610U for X40 X41. 30-day hardware warranty. Features: 3x USB ports, 1x PS/2 port, 1x serial port, 1x RJ-45 ethernet port, 1x parallel port, 1x VGA port, 1x RJ-45, 1x RJ-11. Key not included, AC adapter not included. Use with the laptop's AC adapter.