5. Back I/O Ports. 1 x PS/2 keyboard port, 1 x PS/2 mouse port, 6 x USB 3.0/2.0 ports, 4 x USB 2.0/1.1 ports, 1 x RJ-45 port, 1 x optical S/PDIF Out connector, 5 x audio jacks (Center/Subwoofer Speaker Out, Rear Speaker Out, Line In, Line Out, Mic In), 2 x Wi-Fi antenna connector holes .
6...