Ports 3 x USB 2.0 * ports3 x USB 3.0 ports10/1000 Gigabit Ethernet port2 x DisplayPort 1.2** ports1 x DVI-D** port1 x HDMI 1.4** port1 x VGA** port1 x stereo/mic combo audio port * One supports always-on USB chargingHardware Compatibility ThinkPad X240, T440p, T540pThinkPad T440, T440s Integrated graphics models only (discrete graphics models not compatible)Certifications EC DOC/S-DOC, CB, CE, UL, FCC, AS/NZS S-DOC, VCCI, BSMI, KCC, NOM, GOST, and UkrSEPROOperating Temperature 41 to 109°F (5 to 43°C)Operating Relative Humidity 8 to 95% (non condensing)Storage Temperature -4 to 140°F (-20 to 60°C)Storage Relative Humidity 5 to 95% (non condensing)Dimensions (W x H x D) 13.58 x 2.19 x 6.40" (344.93 x 55.62 x 162.56 mm) Approx.Weight 2.03 lb (0.92 kg) Approx.