The Best flex atx power supply of 2021 – Top 10 and Rankings

If you’re looking for flex atx power supply but don’t know which one is the best, we recommend the first out of 10 flex atx power supply in this article. Check out how we decide after hours of researching and comparing dozens of items on the market.

Rank No. #1
SilverStone Technology 350 Watt Flex ATX Power Supply with Fixed Cables and 80 Plus Gold with 6Pin PCIe Connector SST-FX350-G-USA
  • Support Standard flex ATX Form Factor
  • High efficiency with 80 PLUS Gold certification
  • 350W Continuous power output at 40℃ operating temperature rated for 24/7 operation
  • Class-leading single +12V rail
  • Support PCIe 6pin connector
SaleRank No. #2
FSP Mini ITX Solution/Flex ATX 500W Efficiency ≥90% Full Range Active PFC Power Supply (Flex Guru 500W)
  • Meets 80 Plus Gold ≥ 90% Efficiency | Compliant with latest UL standard 62368 and 60950 standards
  • Comes with a 1U mounting bracket
  • Intelligent fan speed control with ball bearing fan| black coat finish |Direct cable output
  • Powerful single +12V rail design |100% Japanese made electrolytic capacitors
  • Full protections: OVP, SCP, OPP, OTP| 5 Year Warranty
Rank No. #3
SilverStone Technology FX500, 500W Flex-ATX 80 Plus Gold Power Supply, SST-FX500-G
  • Support standard Flex ATX form factor
  • High efficiency with 80 PLUS Gold certification
  • Japanese primary capacitor
  • 500W continuous power output at 40℃ operating temperature rated for 24/7 operation
  • Class-leading single +12V rail
Rank No. #4
Apevia ITX-AP300W Mini-ITX / Flex ATX 300W Solid Power Supply - Black
  • Standard Mini-ITX / FLEX ATX type, Maximum Power: 300W
  • Cooling: Forced Air Ventilation by 1 x 40mm Double Ball Bearing Fan
  • Connectors: 1 x 20+4pin Main Power, 1 x 4pin 12V(P4), 2 x SATA, 2 x 4pin Molex, 1 x 4pin Floppy
  • Output: +3.3V@12A, +5V@12A, +12V@20A, -12V@0.3A, +5Vsb@2.5A
  • Dimension: 150mm x 81.5mm x 40.5mm (5.9" x 3.21" x 1.59") - L x W x H
SaleRank No. #5
Apevia TFX-AP300W Standard Flex ATX 300W Power Supply - 115-230V AC, 1 x 20/24Pin Main Power, 1 x 12V(P4), 3 x Pheripheral, 3 x SATA, 1 x Floppy
  • APEVIA TFX-AP300W Standard 300W Flex ATX Power Supply
  • Input Voltage: 115-230V AC, Input Frequency: 60/50
  • Output: +3.3@12A; +5A@12A; +12V@20A; -12V@0.3A; +5VSB@2.5A
  • 5% Tolerance of 5V, 3.3V & 12V Output
  • Forced Air Ventilation by 1 x 80mm Fan
Rank No. #6
FSP Group Mini ITX Solution/Flex ATX 80 Plus Gold 400W high Efficiency Power Supply (FSP400-60FGGBA)
  • High efficiency 80 plus gold certified power supply; efficiency >90%
  • High Quality Resettable power shut down | Low Ripple & Noise internal 4 cm fan delivers excellent airflow at an exceptionally low noise level
  • 100% burn-in under high ambient temperature(50); MTBF:100K hours at 25
  • Resettable power shut down / 100% Hi-pot tested
  • For standard, advanced server, Networking, NAS and industrial power system
Rank No. #7
Athena Computer Power AP-MFATX50P8 500W Flex ATX Power Supply
  • Remote On/OFF function
  • 100% Hi-pot, ATE and Burn-in tested
  • Exhaust 12V DC fan with thermal fan speed controller
  • Protection Features: Output over voltage, short circuit and overload
  • Complied with FLEX ATX-12V and EPS-12V standard (SLI & Cross Fire ready)
Rank No. #8
SilverStone Technology SST-FX350-G Flex ATX 1U 350 Watt 80 Plus Gold Power Supply with Fixed Cables
  • Support standard Flex ATX form factor
  • High efficiency with 80 PLUS Gold certification
  • 350W continuous power output at 40℃ operating temperature rated for 24/7 operation
  • Class-leading single +12V rail. Active PFC
  • Support PCIe 6pin connector
Rank No. #9
KDMPOWER KDM-MFX9270H Flex ATX 270W Power Supply
  • KDMPOWER 270W KDM-MFX9270H FLEX MIIN-ITX ATX Power Supply
  • KDM-MFX9270H 20+4pins is known mostly as a replacement power supply for Mini ITX / Micro FLEX ATX / Flex ITX 1U, 115V/230V switchable power supply (International compatible) Compatible with ATX 12V
  • 100% compatible with the following models: SS30G, SS40G, SS50, SS50C, SS51G, SS51G1, SS56G, SS56L, SS58G2, SS59, SS59V2, ST20G5, ST61G4, ENHANCE ENP-2320A, ENP-0615B-G, ENP-0616A, ENP-0616B, ENP-0812A, ENP-2320, ENP-2320-PFC, ENP-2322A, ENP-2322B, ENP-2322B-G, ENP-2322C, Elanpower RP-2005-00, MERIT EC7536-01, POWEREX SPC-200F, SHUTTLE MUSIC XPC PROFESIONAL C1, C2, C3, C4, WPOS-232, Topower TOP-FLEX-180, TOP-FLEX-250, TOP-FLEX-300
  • APEVIA ITX-AP250W, AP-MFATX25P8, AP-MFATX22 , Advantech Panel PC PPC-174T, ASUS 04-185002081, ATP-165AAP, DELTA DPS-185JB A, ELAN VITAL EVN-1355A, EVN-1216, ACHME AB611BS15S, AM61BS15S, AM630BS20S, SPARKLE FSP FSP150-50PL, FSP150-50PL1R, FSP180, FSP200-50PLA, FSP200-50PLAR-B, FSP200-50PS,FSP200-50PL-B, FSP200-50PL, FSP-50PLB, FSP200-PLA2, Shuttle KPC K45, K48, PC34N220AC, PC34N220EN, PC3610002, PC40I2503
  • PC3600L, PC40, PC4012503, PC40N250EV, PC50, PC50-PW, PS-X160W, PC-X200W, PC611002, SS50, WPOS-232, XPC SV25, FV25, SA76G2, SB51G, SB51GB, SB52G2, SB61G, SB61G2, SB62G2, SB65G2, SB75G2, SB77G5, SB83G5, SB83G5C, SB95P, SD30G2, SD31G2, SD31P, SG31G2, SG31G2 V2, SG33G5, SK21G, SK41G, SK41G PFC, SK43G, SK83, SN41G, SN41G2, SN41G2B, SN45G, SN68SG2, SN85G, SN95G5B
Rank No. #10
Replace Power 320 Watt 320W Flex ATX Power Supply Replacement Upgrade for IBM SurePOS 500, Shuttle XPC, Achme, ElanVita
  • Upgrade your old and beat up Flex ATX PSU with a 320 Watt High Quality Replace Power PSU
  • Replacement Upgrade for: IBM SurePOS 500, Shuttle XPC, Achme, ElanVital, FSP, SPI, SPARKLE, Enhance, Delta
  • 320 Watt for adding additional devices for great Compatibility
  • Supports AMD/INTEL CPU System

How Do You Buy The Best flex atx power supply of 2021?

Do you get stressed out thinking about shopping for a great flex atx power supply? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching flex atx power supply, which is why we have assembled a comprehensive list of the greatest flex atx power supply available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for flex atx power supply that you consider buying. Your questions might include the following:

  • Is it worth buying an flex atx power supply?
  • What benefits are there with buying an flex atx power supply?
  • What factors deserve consideration when shopping for an effective flex atx power supply?
  • Why is it crucial to invest in any flex atx power supply, much less the best one?
  • Which flex atx power supply are good in the current market?
  • Where can you find information like this about flex atx power supply?

We’re convinced that you likely have far more questions than just these regarding flex atx power supply, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for flex atx power supply, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible flex atx power supply. Make sure that you are only using trustworthy and credible websites and sources.

We provide an flex atx power supply buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available flex atx power supply currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of flex atx power supply has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features:What bells and whistles matter for an flex atx power supply?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your flex atx power supply.
  5. Customer Ratings: Number ratings grade flex atx power supply objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their flex atx power supply.
  7. Product Quality: You don’t always get what you pay for with an flex atx power supply, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an flex atx power supply is should be an indication of how long it will work out for you.

We always remember that maintaining flex atx power supply information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding flex atx power supply is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.