Compatiblity: Lenovo Ideapad B Series: B590, B40-45, B40-70, B50-70, B50-80, B50-45, B50-45, B50-35, B50-30; Lenovo Ideapad Flex Series: Flex 10, 14, 14d, 15, 15d, 2, 2 pro; Lenovo Ideapad V Series: V480, V480c, V480s, V580, V580; Lenovo Ideapad Y Series: Y40, Y50, Y70; Lenovo Ideapad Z Series: z40, z50, z40, z480, z400, z410, z500, z510. Lenovo Thinkpad Edge Series: E11, E13, E14, E15, E120, E125, E130, E135, E145, E220, E220s, E330, E325, E335, E420, E420s, E425, E430, E430c, E431, E435, E440, E445, E450, E455, E460, E465, E520, E525, E530, E530c, E531, E535, E540, E545, E550, E550c, E555, E560, E565, E40-30, E40-70, Lenovo Thinkpad S Series: S230u, S430, S440, S431, S531, S540; Lenovo Thinkpad L Series: L330, L430, L440, L450, L460, L530, L540, L560; Lenovo Thinkpad T Series: T420s, T430, T430s, T430u, T431s, T440, T440s, T440p, T450s, T460, T460p, T520, T530, T540p, T550, T560; Lenovo Thinkpad W Series: W500, W510, W520, W530, W540, W541, W701, P40, P50s, P70, P50; Lenovo Thinkpad Yoga models: s1, s3, s5, 11e, 11s, 2, 2 13¡¯, pro 13, 3 pro; Lenovo Thinkpad X Series: X1, X1 Yoga, X1 Carbon, X230, X250, X1 Carbon 3rd, X1 Carbon 2nd, X140e, X240, X240s, X230s, X131e, X1 Carbon, X230, X230 Tablet, X130e, X1, X220; Also compatible with the Lenovo Thinkpad 11e, Helix 1, Thinkpad 10 Tablet, ThinkPad 8 Tablet, M30-70, and Miix 2 11¡¯. Front Ports: 2 USB 3.0 ports, Stereo / Microphone Combo Audio Port Rear Ports: 2 USB 2.0 ports, 1 DVI-I port, 1 x DVI I, 1 Gigabit Ethernet port, Power-in Includes DVI to VGA adapter Cable lock slot for physical security Does not provide power to Docking Station. ?? ? IMPORTANT ?? ? Dock requires included AC power to operate (Does not power charge laptop) An update of device drivers may be required for proper functionality