ABOUT KDL 40EX520 SONY AUDIO OUT 1 (Side) HEADPHONE OUT 1 (Side) COMPONENT VIDEO (Y/PB/PR) INPUT(S) 1 (Rear/ Hybrid) USB 2.0 2 (Side) COMPOSITE VIDEO INPUT(S) 2 (Rear/ 1 Hybrid) ETHERNET CONNECTION 1 (Rear) RF CONNECTION INPUT(S) 1 (Rear) DIGITAL AUDIO OUTPUT(S) 1 (Rear) HDMI™ / AUDIO IN 4 (1 Side/ 3 Rear) HD15 PC INPUT / AUDIO 1 (Side)