14 | About Your MonitorMST Multi-Stream Transport (MST) ModesElectrical Specifications* Not Support HDMI 1.4 optional specification, include HDMI Ethernet Channel (HEC),Audio Return Channel (ARC), standard for 3D format and resolutions, standard for 2K and4K digital cinema resolution.** Support DP1.2 (CORE) specification, include HBR2, MST and DP audio.1920 x 1080p 50720 (1440) x 480i 60720 (1440) x 576i 50MST SourceMonitorMaximum number of external monitor can be supported1920 x 1200 at 60Hz 1920 x 1080 at 60Hz1920 x 1200 at 60Hz 3 31920 x 1080 at 60Hz 3 3Model U2415Video input signals • HDMI 1.4 (MHL 2.0)*, 600mV for each differentialline, 100 ohm input impedance per differential pair• DisplayPort 1.2**, 600mV for each differential line,100 ohm input impedance per differential pairAC input voltage/frequency/current100 VAC to 240 VAC / 50 Hz or 60 Hz + 3 Hz / 1.5 A(typical)Inrush current • 120 V: 42 A (Max.) at 0 °C (cold start)• 240 V: 80 A (Max.) at 0 °C (cold start)