Output Loading capacity up to 2,300,000 pixels − Maximum width: 4096 pixels, maximum height: 4096 pixels − Non-standard resolutions can be customized in both asynchronous and synchronous modes and the pixel clock of the custom resolutions cannot exceed 153 MHz. 4x Gigabit Ethernet ports. All these four ports serve as primary by default. Users can also set two as primary and the other two as backup 1x Stereo audio connector The audio sample rate is fixed at 48 kHz. If multifunction card is used for audio output, audio with a sample rate of 48 kHz is required. 1x HDMI 1.3 connector Maximum output: 1920×1200@60Hz and support for HDMI loop Input 1x HDMI 1.3 connector In synchronous mode, this connector is used as the video source which can be scaled to fit the entire screen automatically. 2x sensor connectors Connect to the brightness sensor or temperature and humidity sensor. Control 1x USB 3.0 (Type A) port Allows for USB playback, firmware upgrade and storage expansion. 1x USB (Type B) port Connects to the control computer for content publishing and screen control. 1x Gigabit Ethernet port Connects to the control computer, a LAN or public network for content publishing and screen control. Performance Powerful processing capacity − Quad-core ARM A55 processor @1.8 GHz − Support for H.264/H.265 4K@60Hz video decoding − 1 GB of onboard RAM − 32 GB of internal storage Flawless playback Support for playback of 1x 4K, 2x 1080p, 4x 720p, 4x 480p, or 6x 360p videos