Free Express Shipping! Blackmagic Design ATEM Production Studio 4K Live Switcher Supports 10-Bit NTSC/PAL/HD/UHD 4K, Supports 4K Resolution over SDI or HDMI, 4 x 6G-SDI & 4 x HDMI Inputs (4K/HD/SD), Tri-Sync/Blackburst Ref. Sync Input, 8 x Built-In...