No info about availability.
High Power Load for Testing Eurorack Power Supplies
The Power Waster is a module designed for stress testing power supplies. It draws 500 mA from each rail of the power supply. These can be paralleled to increase the current draw. The draw for each rail can be disabled via jumper on the front panel so that when combining multiple Power Wasters one can draw differing amounts of current on each voltage rail. This is primarily useful for power supply developers and sadists.
These merchants probably sell this module. Huh?