Who made your power supply?
The dirty little secret of the power supply market is that there are, in fact, far fewer manufacturers than brands.
There is nothing inherently wrong with that. In fact, some of the best supplies on the market are made by one company (the OEM) and marketed by another. It is, however, confusing. To help sort out some of this mess, we have compiled a partial list of the manufacturers behind the various brands.
Please note that this is a partial list and always will be. Some brands are not listed; some brands use more OEMs than could reasonably be mentioned here. Note also that the OEM behind a particular supply is not by any means the only determinant of its quality; two supplies from the same OEM, even sold under the same brand, may be worlds apart in quality. This list is only meant as a guide.
Much of this information comes from a page maintained by jonnyGURU.
UL numbers are usually a reliable way to determine who actually made a power supply, and so are included here for reference, when possible. Hardware Secrets has a bit more on this. UL numbers are not always available to us, either because the supply is not sold in the US and therefore doesn't need a UL number, or because we could not find a review that included it.
An incomplete list of power supply brands and their OEMs
| Brand | OEM | UL Number | Comments |
|---|---|---|---|
| AcBel | AcBel | E131875 E193721 |
|
| AeroCool | Andyson | E239028 | |
| Akasa | Enhance | --- | Not sold in US, so no UL number |
| AMS (American Media Systems) | HEC | E199442 | |
| Jou Jye | E178102 | ||
| Aopen | FSP | E135662 E190414 |
|
| Antec | Andyson | E176105 | |
| Channel Well | E176105 | ||
| Delta | E176105 | EA650, Earthwatts models ending in D | |
| Fortron | E135662 E176105 |
Basiq series | |
| HEC | E199442 | Older models | |
| Seasonic | E176105 | Trio, NeoHE series, EarthWatts series | |
| Apex/Allied/Supercase | Deer | E203196 | |
| L & C | E164554 E214301 |
||
| Solytech | E223918 | ||
| Arctic Cooling | Seasonic | ||
| Aspire/Apevia | Youngyear | E126556 |
|
| Asus | AcBel | E131875 E193721 E227596 |
|
| Athena Power | Topower | ||
| Athenatech | Athenatech | E244485 | |
| Atrix | Unitek | E250501 | |
| Bestec | Bestec | E127778 | |
| BFG | Andyson | ES-800 | |
| ATNG | Some old models | ||
| Enhance | LS series | ||
| Fore Point | E171647 | LS series | |
| Topower | E130843 | Most models | |
| Broadway | Broadway | E194657 | |
| Chenbro | Etasis | E176239 | |
| Zippy | E143756 | ||
| Chieftec | Channel Well | E161451 | |
| Delta | |||
| Sirtech | |||
| Wintech | E178768 | ||
| CompUSA | Key Mouse | E149998 | |
| San Hawk | E166826 | Master Power series | |
| Wintech | E178768 | ||
| Cooler Master | AcBel | E131875 E193721 E320127 |
Many Real Power series, Ultimate Cirtcuit Protection |
| Enhance | E166947 | Silent Pro, Real Power 850 W | |
| Hipro | E143709 |
||
| Seventeam | E141400 | ||
| Coolmax | ATNG | E186010 | |
| Sirtech | E144195 | ||
| Corsair | Channel Well | E161451 | |
| Seasonic | E307858 | 450VX, 520HX, 620HX, 650TX | |
| Deer | Deer | E203196 | |
| L & C | E164554 | ||
| Solytech | E223918 | ||
| Delta | Delta | E131881 E217431 E313881 |
|
| Dynapower | Dynapower | E195877 | |
| Topower | E130843 | eJet series | |
| Eagle Tech | San Hawk | E166826 | |
| Enermax | Enermax | E134014 | |
| Enlight | ATNG | E186010 E147234 |
|
| ePower | Topower | E130843 | Also written Epower, E-Power |
| Etasis | Etasis | E176239 | |
| Fortron | FSP | E135662 E190414 |
FSP prefix in model |
| Foxconn | Deer? | ||
| Lite-On | E197555 E132068 |
||
| Hiper | Andyson | E303928 E245388 |
|
| Hipro | Hipro | E143709 | |
| Topower | E130843 | TOP prefix in model | |
| In Win | FSP | E135662 E190414 |
FSP prefix in model |
| In Win | E193791 | IW prefix in model | |
| I-Star | I-Star | E155314 | |
| Seventeam | E141400 | PD2 and PD3 series | |
| JPAC | |||
| Just PC | |||
| Kingwin | Kingwin | E197467 | |
| Super Flower | E242429 |
||
| Lian-Li | Sirtech | E144195 | |
| Lite-On | Lite-On | E197555 E132068 |
|
| Linkworld | Linkworld | E131039 | |
| Logisys | |||
| Mad Dog | Super Flower | E242429 |
|
| Masscool | Seventeam | E141400 | Some models |
| Mean Well | Mean Well | E183223 | |
| MGE/XG | Seventeam | E141400 | MGE no longer in business |
| Youngyear | E126556 | ||
| Mushkin | Topower | E130843 | |
| MSI | Solytech | E304116 | |
| Nexus | FSP | E222910 | |
| nMediaPC | Shenzhen Chi Yuan | E181356 | |
| NZXT | Casing Macron | E199529 | Sold with cases |
| Topower | E130843 | Sold individually | |
| OCZ | 3Y | E142723 | Evostream |
| Channel Well | ModXStream Pro 400 W | ||
| FSP | E135662 E190414 |
GameXStream, ProXStream | |
| Impervio | E243823 | EliteXStream | |
| Sirtec | ModXStream Pro 500 W and 600 W | ||
| Topower | E130843 | Modstream, Powerstream | |
| Okia | Broadway | E194657 | |
| PC Power & Cooling | Seasonic | E104405 | Modern Silencer series |
| Sparkle | E161885 | Older Silencer series | |
| Win-Tact | E131500 E172499 |
Turbo-Cool series | |
| Powertek | |||
| Powmax | Leadman | ||
| Raidmax | Sun Pro | E210743 | |
| Topower | E130843 | ||
| Revoltec/Listan | Topower | E130843 | |
| Rosewill | ATNG | E186010 | Most products |
| Solytech | E223918 | ||
| Wintech | E178768 | ||
| Youngyear | E126556 | ||
| Scythe | Topower | E130843 | |
| Seasonic | Seasonic | E104405 | |
| Sharkoon | FSP | E135662 E190414 |
|
| Shuttle | Achme | E158036 E239511 |
|
| SilenX | FSP | E135662 E190414 |
Not all models are FSP |
| Silverstone | Enhance | E166947 | Element and Strider series, Nightjar (external UL E176239) |
| Etasis | E176239 |
||
| Impervio | E313296 | Most Olympia, Decathlon series; Zeus 1200 W | |
| Seventeam | E141400 | Some Olympia, Decathlon series | |
| Soyo | Key Mouse | E149998 | |
| Sparkle | FSP | E135662 E190414 |
FSP prefix in model |
| Spire | Topower | E257731 | |
| Startech | Startech | E224648 | |
| Sunbeam | Andyson | E239028 | |
| Sirtech | Tuniq Potency | ||
| Super Flower /SFC | Super Flower | E242429 | |
| Tagan | Enhance | SuperRock | |
| Topower | E223995 |
Most models | |
| Thermaltake | Channel Well | E303666 | TR2 QFan, others |
| HEC | E303666 | ||
| Seventeam | E303666 | ||
| Sirtec | E303666 | ||
| TTGI | Super Flower | E242429 |
|
| Topower | E130843 | ||
| Tyan | Mitac | E148001 | |
| Ultra | Andyson | E239028 | |
| SevenTeam | E141400 | ||
| Wintech | E178768 | Most products, all X-Finity, X-Connect w/ part number starting with 33 | |
| Youngyear | E126556 | X-Connect (United States) w/ part number starting with 31 | |
| Vantec | Topower | E244194 E197527 E130843 |
|
| Winsis | |||
| XClio | Channel Well | E193705 E161451 |
|
| Enhance | E166947 |
StablePower series | |
| Xigmatek | Channel Well | E161451 | |
| Xion | Super Flower | E242429 | |
| X-Spice | ATNG | E319019 | |
| Yesico | Sirtech | E144195 | |
| Zalman | Enhance | ZM850-HP, ZM1000-HP | |
| FSP | E198072 | ||
| Zippy | Zippy | E143756 |
Some common names and aliases for OEMs
| Company | AKA |
|---|---|
| ATNG | I Horng |
| Broadway | Okia, BCC |
| Channel Well | Channel Well Tech, Channel Well Technolog(y/ies), CWT |
| ForePoint | Fore Point, Fortrex, Focus |
| FSP | Fortron/Source, Sparkle/SPI (Sparkle was formerly independent), Powertech; controlling interest in 3Y |
| HEC | HEC Group, Herolchi Electronic Company, HEC Compucase |
| Topower | ePower |
| Zippy | EMACS |