what would be a good power supply to use with rambo card

[spart]

have to get a new power supply by the looks of it what would be a good amount of power for the rambo card i have one i order 20v 20amp, dont think its going to kick it getting to dam hot set at 12.50 and nothing running looking for low profile any one know, iam not to sure my self what the rambo card power input is rated for.

[cambo3d]

http://reprap.org/wiki/Rambo. .. read here..

then search what others have used via the forum.
http://www.google.com/search?as_q=power ... as_rights=