Blackmagic Design Smart Videohub 20x20 Routing Switcher, 4:2:2 and 4:4:4 Sampling, Built-in LCD with Spin Knob Control, 20 6G-SDI Inputs/Outputs BlackMagic Design Smart Videohub 20 x 20 - Software CD - BlackMagic Design 1 Year Limited Warranty This Item Includes: SDI Video Input: 20 x 10 bit SD-SDI, HD-SDI and 6G-SDI SDI Video Output: 20 x 10 bit SD-SDI, HD-SDI and 6G-SDI. Reference Input: Blackburst and TriSync for SD, HD and 4K. Muti Rate Support: Auto detection of SD, HD or 6G-SDI. Simultaneous routing of 4K, HD, SD video and DVB-ASI.