1-high definition hdd media player 2-RTD1055 3-coaxial 4-optical 5.1 audio source outputing. 5-with SATA High definition hdd media playerMain ... source outputing.Storage Extension portsBack: USB-HOST*2Front: SD/MMC/MSSubtitile supportedSRT,SUB,idx,SSA,SMILanguagesSimplify/Traditional Chinese, ... cable, Optical cable, AC adapter, Remote-controller, User Manual High Definition hdd media player