Excelvan HDMI to SDI Converter Scaler Adapter 1080P 1080I 720P 576I 480P Mini 3G with Coaxial Audio Output for Home Theater Cinema PC HD (Black) [Only Shows HDMI source on SDI display] Only Converters from the HDMI to SDI Can NOT Function Reversely. Supports SD and HD Signals. SDI interface operates at bitrates of 2.970 Gbit/s, 2.970/1.001 Gbit/s, 1.485 Gbit/s, 1.485/1.001 Gbit/s and 270 Mb/s. [High Resolution Signal] Plug and Play for easy operation. This MINI HDMI to SDI Converter allows HDMI signals to be shown on SDI display while ensuring high bit rates of 2.970 Gbit/s to give you high resolution signal Full HD 1080p without any loss. [Long Distance Transmission] For professionals this means it is now easier to convert your high def HDMI signal with audio to SDI for long distance transmission, supports SDI output distance up to 100 meters (3G-SDI)/200 meters (HD-SDI)/300 meters (SD-SDI),and display your work on SDI display like SDI Monitor,SDI camera and so on. [Converts HDMI to SDI] 480i/576i to SD-SDI (SMPTE 259M-C, at bitrates of 270 Mbit/s)720p/1080i to HD-SDI (SMPTE 292M, at bitrates of 1.485 Gbit/s or 1.485/1.001 Gbit/s)1080p to 3G-SDI (SMPTE 424M/425M-AB, at bitrates of 2.970 Gbit/s and 2.970/1.001 Gbit/s). [Please Kindly Note] This is a HDMI to SDI Converter, it converts HDMI signal to SDI signal, it can connect to SDI monitor. The adapter not support BNC to BNC 73-ohm coaxial cable and incompatible with TV. We have equipped a RG6 5FT coaxial cable, no need to buy another expensive one.