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darkFlash PMT850 Fully Modular Power Supply ATX 3.1& PCIe 5.1 Ready, 12VHPWR Cable Included, 100% Japanese 105°C Capacitors, 80 Plus Gold Gaming PSU, Compact 150mm Size, 5 Year Warranty(Black)
darkFlash

darkFlash PMT850 Fully Modular Power Supply ATX 3.1& PCIe 5.1 Ready

Bottom line: The darkFlash PMT850 Fully Modular Power Supply ATX 3.1& PCIe 5.1 Ready ($99.99 on Amazon as of 2026-10-21 04:13 UTC): ATX 3.1 / PCIe 5.1 rated: 200% total and 300% GPU power excursion headroom; main trade-off: 5-year warranty trails the 10-12 years Gold rivals offer.

$99.99

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Buy on Amazon — $99.99 Compare to similar power supplies

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ ATX 3.1 / PCIe 5.1 rated: 200% total and 300% GPU power excursion headroom
  • ✓ Native 12V-2x6 (12VHPWR) cable delivers up to 600W to one GPU
  • ✓ All-Japanese 105C capacitors instead of mixed-brand caps at this price
  • ✓ 80 PLUS Gold, up to 90% efficiency at 850W
  • ✓ Compact 150mm depth fits small ATX and mATX cases

Cons

  • ✗ 5-year warranty trails the 10-12 years Gold rivals offer
  • ✗ darkFlash has less PSU track record than Corsair or Seasonic
  • ✗ 850W leaves thin headroom for a 5090-class GPU plus high-core CPU
  • ✗ Fan noise profile and zero-RPM mode not specified in the listing

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SpecPicks Verdict

SpecPicks scored darkFlash PMT850 Fully Modular Power Supply ATX 3.1& PCIe 5.1 Ready using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. darkFlash's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • [ATX 3.1 & PCIe 5.1 Compatibility] The gaming power supply supports up to 200% total power excursion and 300% GPU power excursion, offering greater stability and security than ATX 3.0 power supplies.
  • [80 PLUS Gold Efficiency] The 850-watt PC power supply enjoys up to 90% energy efficiency, reducing power waste and lowering electricity bills while ensuring stable system performance.
  • [105°C-Rated JP Capacitors] Utilizes high-quality all-Japanese capacitors for exceptional durability and stability, ensuring reliability under high load conditions.
  • [Native 12VHPWR Cable] The 12V-2x6 connector delivers up to 600W of power to PCIe 5.1 graphics cards. With a DC-DC structure, Full Bridge LLC resonance assistance, and 12V synchronous rectification. it ensures a stable and safe output, making it compatible with Nvidia RTX 30/40 Super and AMD GPUs.
  • [Fully Modular Design] The fully modular cable design allows you to connect only the cables you need, simplifying cable management and improving airflow within the case for better cooling.
  • [After-Sales Guarantee] Experience peace of mind with the darkFlash brand and our exceptional 5-years assurance for computer power supply. We prioritize customer satisfaction and provide top-notch product quality to ensure an professional user experience.

Full Specifications

BranddarkFlash
Wattage850 watts
Model NamePMT850W Full Modular Power Supply
Unit Count1 Count
Form FactorATX
Model NumberPMT850
CompatibilityPC
Connector TypeATX3.1
Cooling MethodAir
Output Wattage850
Item Dimensions5.52 x 5.9 x 3.39 inches
Mfr Part NumberPMT850
Compatible DevicesPersonal Computer
Power Supply DesignFull Modular
Warranty Description5-Years
Maximum Input Voltage120 volts_of_alternating_current
Minimum Input Voltage100 volts_of_alternating_current
Item dimensions L x W x H5.52 x 5.9 x 3.39 inches
System Bus Connector TypeATX3.1
Connector Type Used on CableATX3.1
Full listing titledarkFlash PMT850 Fully Modular Power Supply ATX 3.1& PCIe 5.1 Ready, 12VHPWR Cable Included, 100% Japanese 105°C Capacitors, 80 Plus Gold Gaming PSU, Compact 150mm Size, 5 Year Warranty(Black)

Ready to buy?

darkFlash PMT850 Fully Modular Power Supply ATX 3.1& PCIe 5.1 Ready, 12VHPWR Cable Included, 100% Japanese 105°C Capacitors, 80 Plus Gold Gaming PSU, Compact 150mm Size, 5 Year Warranty(Black) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $99.99

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

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darkFlash PMT850 Fully Modular Power Supply ATX 3.1& PCIe 5.1 Ready, 12VHPWR Cable Included, 100% Japanese 105°C Capacitors, 80 Plus Gold Gaming PSU, Compact 150mm Size, 5 Year Warranty(Black)
$99.99
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