12Parts DescriptionDIGITAL AUDIO OUT(OPTICAL) Connects to a audio device using the optical(digital) cable." Supported models: SNOW-1703ULDUSB ¨ Connect to a USB memory device.RS232C IN Used for service purposes.HDMI IN 1, HDMI IN 2 Connects to a source device using a HDMI cable or HDMI-DVI cable.DP IN Connects to a PC using a DP cable.Parts DescriptionSERVICE PORTDedicated to service technicians." This port is for servicing only and has no user function. Donot connect a cable to this port.RJ45 Connect to a network using the LAN cable. (10/100 Mbps)HDBT OUT 1, HDBT OUT 2,HDBT OUT 3, HDBT OUT 4Connects to an interface gender. Each port can transmit Full HDsignals. All the four ports must be used to transmit UHD signals.DC 19V Connects to the DC power adapter.Reverse Side (SNOW-1703U / SNOW-1703ULD)" The color and shape of parts may differ from what is shown. Specifications are subject to change without notice to improve quality.