4k receiver digital tuner dvb s2 twin tuner tuner slot 1 diseqc 10 11 12 video upscale uhd hdmi outputs 1 usb ports usb 30 x2 digital audio output optical 1 hdmi specification hdmi 20 common interface slots 1 smartcard reader 1 smart card encoding system xcrypt playback formats hevc h265 mpeg2 h264 mpeg1 convenience features 12 volt port epg webbrowser webkit manufacturer specific features bouquet list operating system linux pro