Nipros Products › VHD-5400 VHD-5400 $1,839.00 Sold Out Quad 1x4 12G-SDI 1RU Re-Clocking Distribution Amplifier - Four 1x4 12G Systems 4pin XLR + AC Redunant Power Inputs Sold Out Added! Quad 1x4 12G-SDI 1RU Re-Clocking Distribution Amplifier - Four 1x4 12G Systems 4pin XLR + AC Redunant Power Inputs