Kanex Pro 4x1 3Gb/s SDI Switcher with ReClock Technology, supports SDI, HD-SDI and 3G-SDI signals (SW-SDI4X1) Supports multiple video resolutions Memory function recalls last input after restart Input / Output equalizer function Automatically switches between SD, HD and 3G-SDI standards Compatible with HDcctv 1.0, HD-SDI (ST-292), 3G-SDI (ST-424) and SD-SDI (ST-259)