EH-5- is there a aftermarket equivalent?

Hi all ,
I want to get the Ac adapter for my camera when doing studio work - but please Nikon, you have to be joking ! $100+ for a powersuppply ???
Does anyone know what the voltage and amps are ?
EDIT/ i found a unit spec at ebay
AC 100-240V
50/60hz
DC9.0V/ 4.5A
Damn,but i think the connector may to be propietary though , or is it ?
Jaycar ?
I want to get the Ac adapter for my camera when doing studio work - but please Nikon, you have to be joking ! $100+ for a powersuppply ???
Does anyone know what the voltage and amps are ?
EDIT/ i found a unit spec at ebay
AC 100-240V
50/60hz
DC9.0V/ 4.5A
Damn,but i think the connector may to be propietary though , or is it ?
Jaycar ?