115/230V single phase input drives. 750 watt motors. Pacific Scientific. Three of the drives are known good, and the other is easily repairable.
I'm not sure what to do with them yet, maybe CNC my lathe? I really don't need another project right now. My DoAll surface grinder is the next CNC project, well, right after I finish the software for Alloy's Shizouka mill. Almost done with that.