1. An SDI signal input method, divided into four SDI outputs. 2. Support audio signals separated into two channels simultaneously. 3. Adopt 24bit / 192KHz DAC chip to obtain high-quality sound (Splitter only supports 48Khz). 4. DC 5-12V input. 5. With indicator light to show the device usage status. 6. Input port: 1 x BNC (SD / HD / 3G-SDI). 7. Output port: 4 BNC (SD / HD / 3G-SDI), 1 3.5mm audio headphone jack.