The For.A EDA-1000 is a 1U half-size SDI video and audio delay line distributor that supports 3G/HD/SD-SDI and 4K (quad link 3G-SDI) input. It can delay the video, audio, and VANC signals up to 40 seconds (or 80 seconds with the optional EDA-20EX expansion unit). The delay can be set separately for each of the four inputs. The EDA-1000 also supports genlock and can be controlled remotely over Ethernet.
Here are some additional details about the For.A EDA-1000: