skylineR390: What are you talking about, I've never heard of any "DEER" before, what I linked is a Rosewill, and like I said I don't practice brand favoritism.
Rosewill does not manufacture power supplies. Rosewill sells power supplies made by other manufacturers under its name.
Deer is a manufacturer. Deer power supplies are sold by Rosewill (the Rosewill "Value" series), Allied, and other vendors.
The power supply business is very different from, say, the graphics card business. In the graphics card business, the chip designer also produces a "reference card" design. Most graphics cards use the reference design, and they differ only in the cooler, warranty, tech support, and packaging.
In the power supply business, there are no "reference designs": each manufacturer designs and manufactures its own. The reputable manufacturers do not cut corners: they use designs with well-designed filtering, regulation, cooling, etc., and they use quality components. They rate their power supplies for continuous operation at full load and realistic operating temperature. When a need for a particular specification exists, such as the specification of the maximum combined load across multiple +12V rails, that specification appears on the nameplate of the power supply.
The disreputable manufacturers cut corners: they use the cheapest possible circuits and components, down to and including known defective capacitors; their specifications are mere fiction, resulting in loss of regulation, internal damage, outright failure, catching fire, or emitting toxic capacitor contents somewhere around one-half to two-thirds of their fraudulent specifications. Deer is just one of many disreputable manufacturers; however, due to the numerous scandals in the power supply business, Deer is the most notorious.
People who believe the "specifications" put forth by these disreputable manufacturers and the care-nothing vendors who market power supplies manufactured by them are their lawful victims.
Three large power supply
manufacturers known to be reputable (even if they produce some cheap lines) are Seasonic, Channel Well, and Delta. Seasonic power supplies are sold under a variety of names, principally Corsair, Antec, and their own. Channel Well power supplies have long been sold by Corsair. Delta makes primarily server power supplies, though a few of their supplies are sold by Antec as the Earthwatts "D" series.
My company builds servers that are designed for five years or more of continuous operation. We use only Seasonic and Delta-made power supplies. I like to think we know what we are doing.
