4 External USB 3.0 ports 2 front, 2 rear and 6 External USB 2.0 ports 2 front, 4 rear, VGA, DP, 2 L/I, 2 L/O 3
8 USB 2.0 4 front, 4 rear, HDMI, VGA, Audio I/O front/rear 1
Four 4 USB 2.0, Audio I/O Rear: 4 USB 3.0, 2 USB 2.0, VGA, DP, RJ-45, Serial, Two 2 PS/2, Audio I/O, Front: 2
Front: Four 4 USB 2.0, Audio I/O, Rear: Four 4 USB 3.0, Two 2 USB 2.0,Serial, VGA, DP, RJ-45, Audio I/O, Two 2 PS/2 2
Front: Two 2 USB 2.0, Two 2 USB 3.0, Audio I/O, Internal: Two 2 USB 2.0, Exterrnal: Two 2 USB 3.0, Four 4 USB 2.0, VGA, Two 2 DP, RJ-45, Serial, Two 2 PS/2 2
Front: Two 2 USB 3.0, Two 2 USB 2.0, Audio I/0, Rear: Two 2 USB 3.0, Four 4 USB 2.0, VGA, DP, RJ-45, Serial, PS/2, Audio I/O 3
Front: Two 2 USB 3.0,Two 2 USB 2.0, Audio I/O, Rear: Four 4 USB 2.0, Two 2 USB 2.0, Two 2 DP, VGA, Serial, RJ-45, Audio I/O, Two 2 PS/2 2
Front: Two 2 USB 3.0, Two 2 USB 2.0, Audio I/O, Rear: Two 2 USB 3.0, Four 4 USB 2.0, VGA, Two 2 DP, RJ-45, Serial, PS/2, Audio I/O 1
Front: Two 2 x USB 3.0 , Rear: Two 2 x USB 3.0, 2 -in-1: MMC/ SD, RJ45,Audio ports 2
Front: Four 4 USB, microphone, headphone, Rear: Six 6 USB, Serial, VGA, DP, Stereo line in, Speakers line out, PS/2 2
Front: Four 4 USB, microphone, headphone, Rear: Six 6 USB, VGA, Serial, DP, RJ-45, PS/2 Stereo L/I, Speakers L/O 1
Front: Four 4 USB, microphone, headphone, Rear: Six 6 USB, VGA, Serial, Two 2 DP, Audio I/O, PS/2 1
Front: Four 4 USB 2.0 , Audio I/O Rear: Six 6 USB 2.0, VGA, DP, RJ-45, Serial, Audio I/O 3
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
Front: Two 2 USB, Audio I/O, Rear: Four 4 USB, VGA, DP, RJ-45, Audio I/O 3
Front: Two 2 USB 3.0, Audio I/O Rear: Four 4 USB 3.0, Two 2 USB 2.0, Serial, VGA, Two 2 DP, RJ-45, Audio I/O 2
Rear: 4 USB 3.0, 2 USB 2.0, Serial , Two 2 PS/2, Audio I/O, VGA, DP,RJ-45 Front: 4 USB 2.0, Audio I/O 6
Rear: Six 6 USB, Serial, Two 2 PS/2, audio I/O, Front: Four 4 x USB, audio I/O 4