Buy on Amazon : br br Blackmagic Design Mini Converter HDMI to SDI 4K 1 SD HD or 6G-SDI Video Input 4:2:2 and 4:4:4 br br SDI Video Input 1 x SD HD or 6G-SDI br SDI Video Output 4K HDMI output only br HDMI HDMI type A out br SDI Redundant Input Automatically switches over if main SDI input is lost br Multi Rate Support Auto detection of SD HD or 6G-SDI