[lurch]

The driver chips on the board can handle around 44 volts dc at about 3 amps per phase on the motor being driven. The board has on board current limiting settings to allow you to set a max amps per coil for each axis. This will keep the amps from frying your motors. The voltage your motors can handle is not something you should have to worry over as they can usually handle quite a few times the stated voltage on the nameplate on the motor. The controller board does alot of the work for you though. Pay close attention to, and follow your directions. Dave Rigotti is great with his support of the board! I can't say enough about his responsiveness to support his customers in troubleshooting, and setup, as well as just plain customer service after the sale!! You might also check into joining the yahoo hobbycnc group open for daves customers. It's a great place to find support, and good discussion on setup, and performance....