X220/X230 •Ultrabay Slim device bay for optical drive or second hard drive – For a list of compatible options, see www.lenovo.com/support/docks •Digital and analog video support – VGA monitor port and Display Port – For more information on supported monitor configurations, see www.lenovo.com/support/docks •Audio capability – Pass through speakers, microphone in, headphone out •Gigabit Ethernet (RJ-45) •Four USB 2.0 ports •System power on button and easy ejection lever •Integrated key lock and optional cable lock slot for security •Power pass through to fuel your system and recharge the battery – Uses the ThinkPad 65W adapter or ThinkPad 90W adapter, which ship with notebooks and are also available for sale separately