Sixteenth-brick power converters are low profile

ERICSSON POWER MODULES PKU-C series isolated dc-dc power converter come in an industry-standard sixteenth-brick form factor and deliver an output current up to 20A, or an output power equivalent to 100W. Devices operate with a 36V to 75V input voltage range and provides efficient and flexible power performance. Both modules can also be combined to power the 12V and 5V rails in a disk-drive-array application requiring higher power than 100W.

http://www.ericsson.com/powermodules