So today we're looking at what appears to be a decent PSU from the folks at Ultra Products (henceforth just Ultra). This is the Ultra X-Finity 500 Watt PSU w/ Active PFC (in black, with a retail price of $119.99). The PSU is "SLi Ready" according to Ultra web site, so I'm going to be testing an SLi configuration to see if a 500 Watt PSU can run an overclocked gaming machine.