Video Toaster has an internal 400 ns insertion delay which needs to be accounted for when integrating it into a broadcast or post production facility
provides a 360 ns fixed delay and up to 127 ns variable delay (made up of 1, 2, 4, 8, 16, 32 and 64 switch variable delay steps for a total of 487 ns of delay) to compensate for the Toaster board and its cabling