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This section provides an overview for atx power supplies as well as their applications and principles. Also, please take a look at the list of 40 atx power supply manufacturers and their company rankings. Here are the top-ranked atx power supply companies as of December, 2024: 1.FSP TECHNOLOGY INC., 2.Zalman USA, Inc., 3.ADEK.
Table of Contents
Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer.
Engaged in equipment maintenance and engineering work at metal smelting plants. Moved to a chemical manufacturer in 2022. Engaging in similar tasks.
An ATX power supply is a power supply unit or power supply for computers with ATX specifications.
Abbreviated as PSU, ATX is an acronym for "Advanced Technology eXtended," a PC standard introduced by Intel Corporation of the United States in 1995 and now widely used in desktop computers.
The ATX power supply takes a commercial power source (AC) and converts it into a DC power source. The converted DC power is supplied to the CPU, motherboard, and other computer components. The ATX power supply is also responsible for overcurrent protection and noise suppression.
An ATX power supply is mainly used as a power supply for personal computers. They are especially used in desktop PCs, which range from full-tower to mini-tower PCs. The role of an ATX power supply inside a PC is to supply power to internal devices and bus-powered peripherals.
Since the total power consumption varies depending on the PC's parts configuration and specifications, an ATX power supply with a power supply capacity that exceeds the calculated power requirements is selected. It is desirable to select a power supply with a generous power supply capacity depending on the usage environment and application.
An ATX power supply consists of an enclosure, switching power supply circuit, heat sink, and cooling fan.
An ATX power supply has a metal plate or perforated metal enclosure, one side of which is supposed to be exposed to the outside. The exposed side has an input socket for the commercial power supply, and a power feed wire consisting of control signal lines is attached to the inside of the computer. Generally, a socket for connecting a power cable is attached to the end of the power supply cable.
Switching power circuits are components that convert AC (alternating current) to DC (direct current) used in commercial power supplies and provide a stable supply. It mainly consists of a rectifier and a smoothing capacitor. The rectifier performs the AC/DC conversion and the smoothing capacitor stabilizes the waveform. Since the rectifier generates heat during operation, a cooling mechanism is required.
A heat sink is a cooling component made of aluminum. They help disperse and dissipate the heat generated by the rectifier in the power circuit. It occupies a large volume inside the chassis.
The cooling fan is a component that blows cool air into the heat sink to cool it. One or two cooling fans are provided on either side of the enclosure, blowing air from the exposed side of the enclosure. Since warm air rises, it is usually blown in from the side of the chassis and blown out from the top.
An ATX power supply has a standard for outputs called pin assignments. This standard defines the pin assignments of wiring connectors in detail and is applied to various cables, such as motherboard cables and SATA cables.
Each pin has a different output voltage, and output voltages of 5V and 12V are widely used. Each pin is color-coded according to its output voltage: 3.3V is orange, 5V is red, etc. Care must be taken when connecting the wrong pin to a device, as doing so may cause a malfunction.
For safety reasons, ATX power supplies are designed to be connected to the motherboard and not output electricity to each pin unless authorized by the motherboard. PS_ON is used for testing ATX power supply.
The size of an ATX power supply is defined by the standard. The most commonly used power supply size is 150 mm wide and 86 mm high. The depth of ATX power supplies is not specified, so various sizes are available, but 155mm and 158mm are the most common ATX power supply depths.
ATX power supplies also include SFX power supplies, which are standardized to accommodate smaller chassis. SFX power supplies are candidates for use with small PC chassis. However, SFX power supplies have a smaller output capacity than ATX power supplies, so care must be taken when using high-performance graphics boards, etc.
*Including some distributors, etc.
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ADEK Technical Sales, Inc. is a custom manufacturer of OEM and end-user computer requirements that is headquartered in Raymond, New Hampshire, and was established in 1993. The company offers a wide range of industrial computers, including rack-mount computers, panel-mount computers, and embedded computers. ADEK's computers are used in numerous industries, including the oil and gas, manufacturing, and healthcare industries. Its computers are all custom-built to meet the specific requirements of each customer. The company also offers multiple services, including OEM services, computer repair, system design, engineering, and installation.
Zalman USA, Inc., founded in Korea, in 1999 is a manufacturer of coolers, PC cases and power supplies. The company's product portfolio includes CPU Air coolers, CPU Liquid Coolers, Laptop Coolers, Fans and accessories. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT. The company also provides services including national distribution, product selection, installation, preventative maintenance, troubleshooting, repair and customer service.
Tri-Mag, LLC, founded in Visalia, California, in 1931, is a manufacturer of power components, EMI/RFI filters and DC-DC converters. The company's product portfolio includes Industrial Power Supplies, Medical Power Supplies, EMI/RFI Power Line Filters, and AC-DC Wall Adapters, which are used for High-efficiency LED lighting, Industrial Machinery, Casinos and Gaming and Medical Equipment. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure.
Vicor Corporation, incorporated in 1981, is a global company headquartered in Andover, Massachusetts, that designs, manufactures, and markets modular power components and complete power systems. The company supports customers to efficiently convert and manage power from the wall plug to the point-of-load. Their customized power systems can provide specific solutions to the customer from modular, plug-and-play components to semiconductor centric solutions. They have a number of patented technologies based on modular power components. Their continual advances in power delivery architectures, conversion topologies and packaging technology will keep their customers ahead in system efficiency and density.
Antec, Inc., established in 1986 and based in Fremont, California, USA, is a manufacturer and supplier of high-performance computer components and accessories. The company's product range includes P SERIES cases, 80 PLUS power supplies, CPU LIQUID COOLERS, DDR4 memory, and GAMING CHAIRS. These products are used for enhancing computer performance, gaming setups, and DIY projects. Industries served include the gaming community, PC enthusiasts, professional system builders, and VARs. The company also offers technical support, international product distribution, product warranty, and system upgrade consultations.
Corsair, established in 1994 and headquartered in California, United States, is a manufacturer and supplier specializing in hard-performance computer components and gaming peripherals. The company offers a wide range of products, including gaming keyboards, mice, PC cooling solutions, and computer memory. It caters to the gaming and enthusiast computing industries, where reliability and performance are crucial. Gamers and computing enthusiasts make use of the company's components and peripherals to enhance gaming experiences and optimize the performance of PCs.
EVGA Corporation, established in 1999 and based in Brea, CA, USA, is a manufacturer and distributor of NVIDIA-authorized graphics cards. The company's product range includes GeForce RTX 2060, GeForce 700 series, power supplies ranging from 400 watts to 1600 watts, intel Z790 series motherboards, and Z12 series gaming keyboards. These products are designed for computer and gaming enhancements. It serves industries such as retail, etail, distribution, and system building. The company's services include product registration, support tickets, warranty claim submissions, and dealer RMA handling.
AnD Cable Products manufactures and supplies Cable Management and Cable Management Rack products and systems for Data Centers across the United States and worldwide. Our proprietary and innovative Cable Management Rack range are intelligently designed to optimize the data center physical layer, saving up to 30% rack space and significantly reducing equipment costs.
Ituner Networks Corp was established in 1996 and is based in San Jose, California is a supplier and distributor of internet broadcasting and streaming media products. The company possesses a range of products in its portfolio, namely MiniBox, MediaBox, MediaBox Pro, and MediaBox Pro Plus. Internet broadcasting and streaming media solutions are designed with a specific emphasis on achieving quality, reliability, and scalability. The commodities are employed throughout several sectors, encompassing education, entertainment, sports, and news.
PC Power & Cooling, Inc., founded in the United States in 1985, is a supplier of cooling fans and power supplies. The company’s product portfolio includes a comprehensive lineup of power supplies, voltage regulators, and uninterruptible power supplies (UPS) designed to meet the specific demands of modern PCs, industrial-grade power supplies, converters, and inverters. It also provides customized power solutions and guidance and support to select the right power solution for the PCs.
Channel Well Technology Co.,Ltd., founded in 1938 and headquartered in TaoYuan, Taiwan, is a manufacturer of power supply products. The company manufactures power supply products that are applicable in fields like information technology, communication, consumer electronics and especially the low dissipative and low noise power supplies for the desktop industry. Its product lineup includes PC and IPC power supply, industrial and telecom power supply, adapters, USB charger and electric vehicle chargers. The company has acquired ISO and IATF certifications for quality management and an IECQ certificate for hazardous substance process management.
Thermaltake Technology Co. Ltd. has been a manufacturer of various computer hardware and accessories since 1999, headquartered in California, USA. The company primarily manufactures cooling solutions, power supplies, PC cases, and gaming peripherals. One sample product is the company's gaming line, the "TT eSports," which provides performance gaming peripherals and accessories designed for esports and competitive gaming. The company also actively engages with the PC gaming and modding communities through various events and contests, which has helped them build an active user base. Its products enhance computing systems, serving PC enthusiasts, gamers, and professional users.
FSP Technology Inc., established in 1993, is based in Taoyuan, Taiwan, as a manufacturer of electronic power supplies. It specializes in manufacturing battery chargers and PV inverters. It also manufactures AC/DC power supplies, such as IPC power supply units, open-frame power supplies, and solid-state lighting power supplies. The company obtained several ISO certifications, including ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018. In 2022, it patented master-slave interchangeable power supply devices, power converters, and computer casing products. Its manufactured products are catered to smart MicroGrids, medical, gaming, PD charger, and edge computing sectors across Taiwan, the UK, China, Germany, and the USA.
Pico-Box Technology Limited (PBT) is a power supply products manufacturer established in 2017 and based in Shenzhen, Guangdong. The company produces a range of power supply equipment including AC adapters, long strip DC units, and PD chargers, as well as PC components such as chassis or power cables. It also offers OEM/ODM services for customers with unique requirements or use-cases. PBT mainly serves clients in the gaming, industrial manufacturing, and artificial intelligence (AI) sectors.
Sea Sonic Electronics Co., Ltd is a manufacturer and provider of power supply and computer PSU products that was established in 1975 and is based in Taipei, Taiwan. The company’s product portfolio includes power supply units, power converters, power adapters, and more. The power supply and computer PSU products are specifically engineered to deliver superior performance, quality, and unwavering dependability. The products find applications across several industries including electric power, petroleum, chemical, metallurgy, metrology, railway, and environmental protection.
Power-Win Technology was started in 1989 and is a manufacturer of switching power supplies, adaptors, and converters such as DC/DC converters and AC / DC Switching Adapters used in medical and industrial fields. The company located in Taiwan offers samples of the supplies at a nominal cost; for the after-sales service, they provide shipping, customs, export documents, and quality inspections at the head office. The delivery lead time is 30 to 45 days, with a two-cycle warranty for all shipped products. The company has CEC, ISO 9001:2000, ISO 9002, ISO 14001:2004, and ISO 13485: 2003 standards and approvals.
FSP Group UK, incorporated in 2016, is a private limited company that operates as a holding company, based in East Sussex, England, is a manufacturer of power supply units in global marketing. The company majorly manufactures the OEM/ ODM power supply for PC, IPC, server system, workstation, and NVR/NDR. It has been cooperating with numerous global brands such as HP, Supermicro, Intel, Advantech, Siemens, Philips, TT Electronics, and many more. Its products are certified with low noise level by Cybenetics and high efficiency by 80Plus. Its overseas subsidiaries are involved in multiple sectors, providing a diverse range of services.
Sunpower Group Holdings Ltd., founded in 1995 in Aldermaston, Berkshire, United Kingdom, is a manufacturer and supplier of power solutions. It offers eleven product segments: LED lighting, power inverters, battery charges, DC-DC converters, and open-frame power suppliers. The company is ISO-9001 and ISO-14001 certified and serves various industries such as gaming, farming, and harvesting rainwater with power supplies. The company also provides various services, including power supply applications, technical support, personalized PSU design, and customization of power supply.
WinSystems, Inc. is an American ISO certified manufacturer of embedded computer systems headquartered in Grand Prairie, Texas, and founded in 1982. The company manufactures single board computers, panel PCs, power supplies, I/O expanders, and network adaptors. Its computer systems are capable of controlling drones, machine learning, and monitoring and transmitting data with applications in energy, automation, aerospace, transportation, and internet of things industries. The company supplies its products domestically and internationally and has various technology partners including AMD, Intel, Linux, Windows IoT, and the PC/104 Consortium.
Lian Li Industrial Co., LTD, founded in Taiwan in 1983, is a manufacturer of high-quality PC cases and accessories. The company’s product portfolio includes a wide range of PC cases designed to meet various needs, from compact cases for space-efficient setups to full-tower cases for high-end configurations. The company is also an OEM and ODM service provider that helps develop small start-up products or enables large-scale high-quality manufacturing of industrial and server cases.
DeepCool US Inc. is the American branch of the Chinese manufacturer of personal computer (PC) hardware and thermal products established in 1996 and headquartered in Beijing. The company produces various computer cases, power supply units, coolers, and peripherals. Its product line includes various liquid cooler systems for CPUs, modular power supply units, gaming mice, and mechanical gaming keyboards. Aside from its products, the company also offers OEM/ODM services for customers with unique product specifications.
ASUSTeK Computer Inc. (ASUS) is a Taiwanese multinational developer and manufacturer of consumer electronic products that was established in 1989 and is based in Beitou, Taipei. The company produces various computing devices including desktop, laptop, and netbook models. They also function as an OEM of motherboards, computer assembly components, displays, networking and IoT devices, and smartphone parts. ASUS has several notable subsidiaries operating worldwide, including ASUS Republic of Gamers (ROG), ASMedia, and AAEON.
Cooler Master Technology Inc., established in 1992 and headquartered in New Taipei, Taiwan, is a manufacturer of computer hardware. Offering a diverse product lineup, including CPU air coolers, CPU liquid coolers, case fans, power supplies, and computer peripherals. These products cater to the essential needs of computer enthusiasts and gamers, ensuring efficient cooling and power delivery. The company has earned recognition in the form of awards like the iF product design award and Red Dot Design Awards for its products. The company holds ISO 9001 certification at its main manufacturing facility in Taiwan.
Advantech Co., Ltd., established in 1981 in Neihu District, Taipei, is a pioneering manufacturer and designer of a range of products, solutions, and services. The company boasts an extensive product portfolio that includes system integration, customer-centric design services, cutting-edge embedded systems, automation products, and global logistics support. Its aim is to usher in an era of an intelligent planet through its automation and embedded computing products and solutions. These diverse products and services empower smarter ways of working and living to enhance the quality of life and productivity across various industries.
SilverStone Technology Co., Ltd., established in 2003 and based in New Taipei City, Taiwan, is a manufacturer and supplier of computer enclosures. The company's product range includes computer chassis, power supplies, server/NAS, storage devices, coolers, and fans. These products support computing operations, system cooling, data storage, and server management. It primarily serves the computing, home entertainment, tech integration, and digital storage sectors. The company also offers design, manufacturing, and global distribution services.
Nipron Co., Ltd., established in 1970 and based in Japan, is a manufacturer and supplier of power supplies. The company's product range includes AC-DC power supplies, DC-DC power supplies, medical power supplies, ATX power supplies, and UPS function-embedded ATX power supplies. These products find applications in equipment protection, consistent energy supply, medical device functioning, and computer system operations. It serves industries such as medical devices, factory automation, telecommunication, and transportation. The company also offers backup solutions, consistent energy supply, and high-end power solutions.
Apevia Corporation, established in March 1999 and based in City of Industry, CA, U.S.A., is a manufacturer and supplier of corporate and gaming computer cases. The company's product range includes chassis, power supply, cooling, accessories, and ITX cases. These products are designed for both corporate and personal computing needs. Industries served include gaming, corporate computing, PC equipment, and personal computing. The company also offers customization of computer cases, wire/cabling solutions, case fan provisions, and case-related cable/wire adapters.
Segotep, established in 2003 and based in Huizhou, Guangdong, is a manufacturer and supplier of gaming computers and DIY computing hardware. The company's product range includes 750W power supply, 850W power supply, Memphis white micro ATX PC case, Phoenix T1 ATX full tower gaming case, and Slath mini ITX PC gaming computer case. These products are used for powering computer systems, housing PC components, and enhancing gaming experiences. It primarily serves the electronics, gaming, IT, and computer hardware industries. The company offers design, development, production, and quality assurance services.
Delta Electronics was founded in 1971 in Taipei, Taiwan. Delta Electronics is a global provider of power and thermal management solutions, serving power electronics, automation, and infrastructure. Delta’s power electronics division sells components such as inductors, power and system components such as industrial power supplies and external adapters, fans and thermal management such as DC brushless fans and motors, and automotive electronics. Automation includes industrial automation and building automation subdivisions. Infrastructure includes ICT infrastructure, energy infrastructure & industrial solutions, and display & visualization. Delta Electronics also provides solutions for data center, telecom energy, and EV charging.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | FSP TECHNOLOGY INC. |
7.9%
|
| 2 | Zalman USA, Inc. |
5.4%
|
| 3 | FSP Ltd. |
5.2%
|
| 4 | ADEK |
4.9%
|
| 5 | Sea Sonic Electronics Co., Ltd |
4.9%
|
| 6 | PC Power & Cooling, Inc. |
4.6%
|
| 7 | Corsair |
4.6%
|
| 8 | Tri-Mag, LLC |
4.6%
|
| 9 | Vicor Corporation |
4.3%
|
| 10 | EVGA Corporation |
3.8%
|
Derivation Method
The ranking is calculated based on the click share within the atx power supply page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
10 | 33.3% |
|
Taiwan
|
10 | 33.3% |
Germany
|
3 | 10.0% |
|
United Kingdom
|
2 | 6.7% |
|
China
|
1 | 3.3% |
|
Japan
|
1 | 3.3% |
India
|
1 | 3.3% |
|
CHINA
|
1 | 3.3% |
Sweden
|
1 | 3.3% |
25 products found
25 products
HUNTKEY JAPAN Co., Ltd.
20+ people viewing
Very Fast Response
■AC input ・Input rated voltage: AC100-240V (AC85*-264V) ・Input frequency: 50/60Hz ・Efficiency: 85% (AC100V), 90% (AC240V) ・Power factor: 96% or...
HUNTKEY JAPAN Co., Ltd.
10+ people viewing
Very Fast Response
■Features ・Active PFC design, power factor over 0.98 ・High efficiency LLC design architecture, 90-264V total voltage ・Support grid input, meet U...
HUNTKEY JAPAN Co., Ltd.
20+ people viewing
Very Fast Response
■Features ・HUNTKEY-ATX1200W power supply ・Active PFC design, power factor over 0.98 ・High efficiency LLC design architecture, 90-264V full volta...
Nipron Co., Ltd.
30+ people viewing
Last viewed: 21 hours ago
◼︎Overview - Power outage backup function protects your PC from power outages ・80PLUS SILVER compliant ・Ultra high efficiency power supply with 9...
Nipron Co., Ltd.
30+ people viewing
Last viewed: 10 hours ago
◼︎Overview - Power outage backup function protects your PC from power outages ・80PLUS SILVER compliant ・Ultra high efficiency power supply with 9...
Nipron Co., Ltd.
30+ people viewing
Last viewed: 18 hours ago
◼︎Overview ・Supports power outage backup by connecting a battery pack ・Appendix C mounting surface compatible ・Uses a synchronous rectifier circ...
Nipron Co., Ltd.
30+ people viewing
Last viewed: 1 day ago
◼︎Overview - Power outage backup function protects your PC from power outages ・80 PLUS BRONZE acquisition ・Full output minimum load current 0A sp...
Nipron Co., Ltd.
40+ people viewing
Last viewed: 10 hours ago
◼︎Overview - Power outage backup function protects your PC from power outages ・80 PLUS BRONZE acquisition ・Full output minimum load current 0A sp...
Nipron Co., Ltd.
20+ people viewing
Last viewed: 1 day ago
◼︎Overview ・80PLUS SILVER acquisition ・Achieves standby power of 0.5W or less and complies with ErP Directive. ・Uses synchronous rectification c...
Nipron Co., Ltd.
30+ people viewing
Last viewed: 13 hours ago
◼︎Overview ・Achieves high efficiency of 94%typ with AC230V input ・Both reliability and high efficiency ・Achieve low noise ・Long-life design wit...
Nipron Co., Ltd.
40+ people viewing
Last viewed: 1 day ago
◼︎Overview ・80 PLUS BRONZE acquisition ・Full output minimum load current 0A specification ・Achieved standby power of 0.5W or less, compliant wit...
Nimatsu Electric Co., Ltd.
70+ people viewing
Last viewed: 7 hours ago
Very Fast Response
Wentai Technology Corp. is an OEM/ODM manufacturer of ATX power supplies, LED drivers, smart connected lighting, and IoT devices in Taiwan. Wentai...
NMR Co., Ltd.
220+ people viewing
Standard Response
1u Flex ATX 300 W power supply ■ Order name (Part number: content) ・ ACE-A630B-RS-R10: 1u Flex ATX 300W power supply, 90-264 VAC, ERP, CCL, ROHS
NMR Co., Ltd.
180+ people viewing
Last viewed: 1 day ago
Standard Response
600W PS/2 ATX power supply, ER ■ Order name (Part number: content) ACE-A160A-R11: 600W AC-DC PS/2 ATX Power, ERP, 80 Plus (BRONZE)
Nipron Co., Ltd.
30+ people viewing
Last viewed: 2 hours ago
◼︎Overview ・High efficiency achieved by using synchronous rectifier circuits and SiC diodes ・Achieves low noise & low leakage current, noise term...
aiuto Co., Ltd.
100+ people viewing
Last viewed: 6 hours ago
Standard Response
ASUS power supply ■ATX 3.0 compatible/80PLUS GOLD certified "TUF Gaming Gold" 750W power supply ・80PLUS GOLD certification acquired ・Uses milit...
aiuto Co., Ltd.
110+ people viewing
Last viewed: 11 hours ago
Standard Response
ASUS power supply ■ATX 3.0 compatible/80PLUS GOLD certified "TUF Gaming Gold" 850W power supply ・80PLUS GOLD certification acquired ・Uses milit...
aiuto Co., Ltd.
90+ people viewing
Last viewed: 11 hours ago
Standard Response
ASUS power supply ■ATX 3.0 compatible/80PLUS GOLD certified "TUF Gaming Gold" 1000W power supply ・80PLUS GOLD certification acquired ・Uses mili...
aiuto Co., Ltd.
90+ people viewing
Last viewed: 5 hours ago
Standard Response
ASUS power supply ■80PLUS GOLD certification/ATX 3.0 compatible "TUF Gaming" 1200W power supply ・“TUF Gaming” 1200W power supply ・80PLUS GOLD c...
aiuto Co., Ltd.
80+ people viewing
Last viewed: 11 hours ago
Standard Response
ASUS power supply ■80PLUS Bronze certification acquired High cooling performance with Axial-tech fan. Durable "TUF Gaming" series 550W power suppl...
Nipron Co., Ltd.
20+ people viewing
Last viewed: 3 hours ago
◼︎Overview ・Various monitoring such as lifespan prediction, output voltage/current, and abnormal conditions is possible. ・High efficiency achieve...
Compucase Japan Co., Ltd.
40+ people viewing
Last viewed: 7 hours ago
Intel ATX 3.0 compliant ■Passed Intel ATX 3.0 official certification Meet the power requirements of new generation CPU and graphics cards ■Other f...
Compucase Japan Co., Ltd.
40+ people viewing
Last viewed: 18 hours ago
■Features - Compliant with ATX12V version 2.2 standard ・12cmFAN power supply - Equipped with protection circuits: OPP (overload protection), OVP (...
Compucase Japan Co., Ltd.
40+ people viewing
Last viewed: 2 hours ago
■Features ・Compliant with TFX12V version 2.3 standard ・ Equipped with 8cm FAN - Equipped with protection circuits: OPP (overload protection), OVP...
Compucase Japan Co., Ltd.
40+ people viewing
Last viewed: 1 day ago
■Features ・Equipped with 8cm FAN ・Equipped with protection circuits: OPP (overpower protection), OVP (overvoltage protection), SCP (short circuit...
