I've decided to part with my old Hydra version 1 boards.
These boards were build with through-hole rather than surface mount components. All are assembled and tested. They differ from the v2 boards in that they lack a built-in display (an i2c RGB LCD display is needed for them to work and is sold separately) and they cannot perform on-demand inlet state switching like the V2 boards can.
They're on sale for half price ($50 for an assembled and tested board).
Get them while they last!