2x DP,
1x VGA Port D-Sub,
1x Serial Port 1
Front: 4 USB, audio ports, Rear: Two 2 USB 2.0, 1 Serial, VGA, DP, 2 PS/2, audio in/out 2
Front: Four 4 USB 2.0, Audio I/O, Rear: Six 6 USB 2.0, Serial, VGA, DP,RJ-45, Two 2 PS/2, Audio I/O 2
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: Two 2 USB 2.0, Audio I/O, Rear: Four 4 USB 2.0, VGA, DVI, RJ-45, Audio I/O 1
Front: Two 2 USB 2.0 , Audio I/O Rear: Four 4 USB 3.0, Two 2 USB 2.0, VGA,DP, RJ-45, Serial, Audio I/O 2
Front: Two 2 USB 2.0, Audio I/O, Rear: Six 6 USB 2.0, RJ-45, VGA, HDMI, Audio I/O 1
Front: Two 2 USB 2.0, microphone, Audio I/O Rear: Six 6 USB 2.0, VGA, DP, RJ-45, Audio I/O, Two 2 PS/2 1
Front: Two 2 USB 3.0 , Audio I/O Rear: Two 2 USB 3.0, Four 4 USB 2.0, VGA, Two 2 DP, RJ-45, Serial, Audio I/O, parallel 25-pin optional 2
Rear: 4 USB 3.0, 2 USB 2.0, Serial, VGA, DP, 2 PS/2, audio in/out, Front: 4 USB 2.0, audio ports 7
