MultiSync M491 - 49� LED LCD Public Display Monitor, 3840 x 2160 (UHD), 24/7, 500 cd/m2, Landscape/Portrait, HDMI In x2, DisplayPort In, Audio Mini-Jack Out, Full bidirectional control through RS232C and LAN, Intel Smart Display Module - Large PC with Intel Celeron installed (SDM-VICW-IS), Integrated 10W x 2 Speakers, Full Input Detect Functionality, Cisco Certified Compatible Display, Integrated Ambient Light Sensor, Metal Chassis, 3 Year Commercial Warranty, Stand not included (ST-43M or ST-401)