50" UHD HDMI(3), RS-232C(1), USB(1), RF in(1), audio out(1), External speaker(1), RJ45In/Out, Crestron Certi. Compatibility, DPM (Digital Power management), Time scheduler, RTC (Real Time Clock) , NTP sync timer, Super Sign SW Compatibitlity-Control / Control Plus, Hospitality feature(welcom video, welcome screen-splash image, insert image), USB Auto playback, moving picture playback, setting option: auto off/sleeptime, energy saving mode, motion eye care.