Nipros Products › VHD-210 VHD-210 $429.00 Sold Out 1x2 12G-SDI Re-Clocking Distribution Amplifier w/ 4pin XLR + DC Barrel Power Input & Dual-Polarity Operation Sold Out Added! 1x2 12G-SDI Re-Clocking Distribution Amplifier w/ 4pin XLR + DC Barrel Power Input & Dual-Polarity Operation