The Atomos Connect H2S Converter with 2600mAh Battery converts an HDMI signal to two SDI outputs, supporting resolutions up to 1080i60/50, including 1080p30/25. The device also generates test patterns and performs pulldown removal and insertion.This converter is battery powered and features a 2-hour internal battery and comes with a 12-hour external NP-series battery. You can optionally get higher capacity 7.4V NP-series batteries for up to 32 hours of power. The converter also itself mounts into NP-series battery plates and can be attached in place of a battery on any compatible Atomos or third-party recorder. By the same mounting mechanism, it is also vertically stackable with additional H2S and S2H units, and an entire stack can be powered by one battery attached to the topmost unit.