The SD1141 is a miniature and low-cost 1x4 3G/HD/3G-SDI re-clocking distribution amplifier. Among the 4 outputs, the SDI out 2 and SDI out 4 can support ASI signal. Besides, this distribution amplifier can be powered by DC or Micro USB. Featuring four separately buffered SDI outputs, the SD1141 provides automatic input detection, re-clocking and cable equalization (SD: 400m, HD: 200m, 3G: 120m).