Lenovo Thinkpad Ultra Dock 40A20170US with 170w AC Adapter Included.;Security Sealed by Lenovo to ensure Genuine Lenovo USA Product.;features = 3x USB 2.0, one supports always-on USB charging 3x USB 3.0 10/1000 Gigabit Ethernet, supports enterprise manageability, 2x DisplayPort 1.2, 1x DVI-D , 1x HDMI 1.4, 1x VGA, Driver-free, perfect video quality 1x Stereo/Mic Combo Audio Port Charges your ThinkPad;Compatibility for Lenovo Ultradock = L Series - L450 , T Series - T440 , T440p , T440s, T450, T450s, T540p , T550, W Series - W540, W541, W550s , X Series - X240, X250;WARNING - Supports models with integrated graphics only. Does not support models with discrete graphics.