Free Express Shipping! Blackmagic Design Teranex AV Dual SD/HD/3G/6G/12G-SDI I/O, Quad-Link SDI Output, HDMI 2.0 Input and Output, Supports SD, HD, 2K, and UHD 4K, Automatic Input Signal Detection, Redundant SDI Input & Looped SDI Output, 24-Bit, 48...