These are industrial grade power supplies with -48 volt or +48 volt DC input. They are useful for
applications where battery or solar power is available. These are regulated switching power converters. For use in telecom
applications and other situations where the supply voltage is between -38 to -72 volts.
36 volt DC input ATX power supply 40 volt DC input ATX-12 power supplies 48VDC ATX DC to DC
converter 54 volt ATX DC input computer power supply 60 volt DC input desktop computer power supply
66 volt DC
input computer power supplies, ATX style 72 volt DC to DC computer power supply