... vob,dat,mp3,wmv,and wma6,USB PVR function7,advanced Time-shift function with external HDD/USB Stick8,5000 channels memory space9, ... ,upgrade software from PC to receiver trhough RS232 PORT25,usb software upgrade26,The OTA upgrade supported27,Games includedSATELLITE INPUT/ ... JACK FOR RS232 connection,for upgrade or other service1xmini USB,FOR PVR,timeshift and upgrade service Scart Stick DVB-S USB PVR