Includes the following video ports: 1 DisplayPort, 1 DVI-D, and 1 VGA. For dual monitors, one monitor must be connected to VGA, the other can use either the DisplayPort or DVI-D port. The use of port converters (available separately) may allow support of other monitor connection types. Compatible with the following laptop models: L440, L450, L460, L470, L540, L560, P50s, T440, T440p, T440s, T450, T450s, T460, T460p, T460s ,T470 ,T540p ,T550 ,T560, T570 , W550s , X240 , X250, X260, X270. WARNING - YOU MUST DOWN LOAD THE LENOVO UPDATED FIRMWARE AND DRIVERS FOR THIS ITEM TO FUNCTION CORRECTLY. WARNING - Does not support models with a Quad Core Processor / Does not support ThinkPad T460p quad-core models with discrete graphics. Please use the ThinkPad Ultra Dock 170W.