These power supplies are compatible with any Antminer S9, S9I, S9J, S9K, S9SE, S9 Hydro, or L3+ Model. They supply power at the following wattage and voltages:
APW3++: 1600w@220v or 1300w@110v
APW7: 1800w@220v or 1000w@110v
Used units will be dusty but functional.