Ports       Show Part Numbers       Hide Part Numbers 1015456R, 1015572R, 2906025R, 2906026R, 2906053R, 2906063R       Show Model(s)       Hide Models GT5650j, DX442X, DX442B, DX442S, DX442XP These are the ports on the rear computer. Refer to the following table for more information. Item Description A PS/2 keyboard port B PS/2 mouse port C VGA D IEEE 1394a port E Six USB 2.0 ports F RJ-45 10/100 Mbps Ethernet LAN port G SPDIF digital audio out port H Center channel and LFE (subwoofer) / retasking jack I Surround left and right / retasking jack J Microphone in / retasking jack K Line out / retasking jack L Side surround left and right / line in / retasking jack