The Blackmagic <strong> ATEM Talkback Converter 4K </strong> handles up to 8 cameras providing SDI talkback using embedded audio channels 15 and 16, the same channels used on Blackmagic Studio Cameras and the ATEM Camera Converter. The ATEM convertor supports 12G-SDI for all SD, HD and Ultra HD formats up to 2160p60 and provides BNC connections to each camera, and an optical fiber socket for adding an optical fiber SFP module when needed. The unit features push to talk buttons, support for tough and common aviation headsets, loop though for more than 8 camera support, a built in speaker, front panel mic input and much more.</p><p><strong> Please Note:</strong> SFP Fiber modules are sold separately!</p>