Lateral: Headphone Output, HDMI In (1.4), USB (2.0), CI Slot; Behind: HDMI In (HDCP, 1.4), RF In (2), AV In, Component In (RCA5 Type), Digital Audio Out (Optical), RGB In (D-sub 15pin) - PC, RS-232C(D-Sub 9pin, Control & Service), RJ45 (Usage Purpose, SNMP & MHEG), External Speaker Out (Spk-out 1, 4W (Stereo, R : 2.0W, L : 2.0W, 8Ω))