Doesn't the Hynes replace the brick on a CAPS server which is 12V? The pico or nano power supplies (up to 150W) in the steacom cases (as an example) convert the incoming 12V to other voltages required for the motherboard. eg Streacom FC10 Full Aluminium Fanless Chassis
or am I missing something?
Edit also see : 150W nanoPSU and AC/DC adapter block