3x SuperSpeed USB 3.0; 2x USB 2.0. Designed For Dell Latitude 3379, 3390 2-in-1, 3490, 3590, 5280, 5285, 5289, 5290, 5290 2-in-1, 5480, 5490, 5491, 5495, 5580, 5590, 5591, 7280, 7285, 7290, 7380, 7389, 7390, 7390 2-in-1, 7480, 7490; Precision 3520, 3530, 5520, 5530, 5530 2 in 1, 7520, 7530, 7720, 7730; XPS 9360, 9365, 9370, 9560, 9570, 9575 Display / Video: 1x HDMI; 1x VGA; 1x Mini DisplayPort. Networking Data Link Protocol : Gigabit Ethernet 1x RJ-45 Ethernet port; 1x Headphone/Mic 3.5 Millimetre port; 1x audio out 3.5 Millimetre port 180W AC Power Adapter with 7.4 Millimetre barrel Display Port over USB Type C Cable, See compatible systems in the description.Max Resolution:3840 x 2160 @ 30 Hertz, 2560 x 1600 @ 60Hertz