Summary: I bought this model power supply about a year ago, it replaced a Silverstone that failed after several years of really great performance. I've been happy with both the quietness and the performance of this power supply. I'm now building another system, and after spending several hours researching current power supplies I just kept coming back to this model time and time again. So I bought another.
Summary: I purchased this unit to replace a smaller unit in a small server and it worked perfect. Have purchased this brand in past with great results, no one should need to ask about this brand has been around for some time and always works as designed. My only complaint work be if you are working with a bigger case (like I was) the wiring is tight (short) but workable if you take time and route correctly.
Summary: Now two weeks after build and am very satisfied with the Thermaltake Toughpower Grand 850W TPG-850M SLI and CrossFire X Ready power supply. I call this a semi-modular PS because the two main mobo power supply wires come already attached (black color), peripheral wires for PCI card devices (mainly graphic units) and for SATA devices (mainly hard drives or disk drives) can be inserted as needed. These peripheral wires are also black.
Summary: I ordered this PSU for my new gaming and video editing rig. I needed something that would provide stable, clean current, keep itself cool (for longevity as well as not adding more heat than absolutely necessary to my case), and something that would add to the look of the inside of my case (CM Storm Stryker). The TT Toughpower Grand fit this bill at a decent price. I am reviewing the 850W version.
Summary: It even came with something I never saw before. Rubber cushions to isolate the frame of the desktop from the PSU. Put them between the back of the computer and put the screws through the cushions into the PSU. Little tricky installing it as my case is older and the PSU is on top not bottom. It is working great though.
Summary: My real power needs are in the neighborhood of 400 watts but I bought this power supply on the theory that it would be overbuilt for my needs. To me overbuilt means less stress on the power supply--this one doesn't even notice when it is putting out 400 watts--and less stress on the psu means less stress on the components of the computer build. Anyhow I bought the unit a year ago and it's continuing to serve as it ought.