Lg Electronics 50UR640S9UD LG CreateBoard 55TR3DK-B TR3DK Series - 55" LED-backlit LCD display - 4K - for education / bu

55IPS3840x2160 (UHD)Brightness440nit(w/o Glass max) 390nit (w/o Glass typ)Life time30000 HoursOperation Hours (Hours/Day)16/7HDMIO (3) HDCP2.2RGBAudio InRS232C INRJ45(LAN)USB3.0 Type A(4)USB2.0 Type A(1) USB Type-C(1 USB-PD DP-Alt)Audio OutRJ45(LAN)Bezel ColorGreyInternal Memory32GBWi-FiAuto Brightness sensorPower IndicatorwebOS ver.Android 11.0Multi-screenPIPPBPOperation Temperature0 ~ 40 COperation Humidity10 ~ 90 % RHSpeakerErP / Energy StarOPS type compatibleOPS Power built inLG Connect