Hardware Logic writes: "E-power opened its California doors in 1990 as a small PSU supplier. Since that time they have grown and diversified their product line to include cases and accessories that range from case fans to server backplanes. Yet, they never abandoned their roots however, they are still best known for their power supplies.
Today we have E-power's Thunder 550 watt PSU. Is this unit as touted; a quiet, efficient, "3 in 1" power supply? And, what exactly is "3 in 1"?
The Thunder 550 watt retail box is feature packed. The unit ships with a color manual, mounting screws, a rainbow colored array of re-usable Velcro straps, a main power cord, and an EPUS cable (we will discuss that later). Additionally, the box informs us that this PSU is Crossfire and SLI ready. The 550 sports a black chrome (aka titanium black) finish. We have only seen a few power supplies with this finish and we have to say, it never gets old. It's a very hard finish to describe – and photograph. But, we figure the image below will give some idea of the shine on this unit." 89/100