1xVGA, 1xHDMI, 1xDisplay Port 1
4 x USB 3.0 total, 6 x USB 2.0 total, 2x USB 2.0: 2x USB 3.0 x USB front, 2x USB 2.0: 2x USB 3.0 x USB rear, 2x USB 2.0 x USB internal, optional: via adapter card x VGA,1 x Ethernet RJ-45,1 DVI, 1 x DisplayPort 6
Front: Four 4 USB 2.0, Audio I/O, Rear: Two 2 USB 3.0, Four 4 USB 2.0, VGA, DVI, DP, RJ-45, Serial, Audio I/O 2
Front: Four 4 USB, microphone, headphone Rear: Eight 8 USB, Stereo LI, Speakers LO, DP 1
Front: Four 4 USB 2.0, Audio I/O, Rear: Four 4 USB 2.0, Two 2 USB 3.0, 2 x USB internal, VGA, DP, DVI, Serial, PS/2, Audio I/O 1
Front: Four 4 USB 2.0, Audio I/O, Rear: Four 4 USB 2.0,Two 2 USB 3.0, VGA, DP, DVI, Serial, RJ-45, PS/2, Audio I/O 2