niceeshop(TM) 3G 1080P HDMI to SDI HD Audio Video Convertert for Home Theater (Black,US Plug) Supports SDI output distance up to 100 meters (3G-SDI), 200 meters (HD-SDI), or 300 meters (SD-SDI) Size: 8x4.1x2.5cm/3.1x1.6x1.0inch 1080p to 3G-SDI (SMPTE 424M/425M-AB, at bitrates of 2.970 Gbit/s and 2.970/1.001 Gbit/s) 720p/1080i to HD-SDI (SMPTE 292M, at bitrates of 1.485 Gbit/s or 1.485/1.001 Gbit/s) 480i/576i to SD-SDI (SMPTE 259M-C, at bitrates of 270 Mbit/s)