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Black rectangular ATX power supply unit with fully modular cable ports and 120mm fan grille

darkFlash

darkFlash DF-DG-850-BK 850W ATX 3.1 power supply

SKU CH-SR40-13FA2 MPN DF-DG-850-BK

Fully modular ATX 3.1 power supply delivers 850 W with 80 PLUS Gold efficiency and a native 12V-2x6 cable for 600 W GPU power

  • ColorBlack
  • TypeATX 3.1 Ready, PCIe 5.1 Ready
  • Maximum Power850 W
  • PFCActive
  • Main Connector20+4Pin
  • Energy-Efficient80 PLUS GOLD Certified

Option 850W

  • 850 W continuous power drives demanding CPUs and GPUs
  • Native 12V-2x6 cable supplies up to 600 W to modern graphics cards without adapters
  • 80 PLUS Gold certification delivers over 90 % efficiency at typical loads
  • Fully modular design and compact 140 mm depth simplify cable routing and improve airflow
  • 120 mm HDB fan and seven protection circuits ensure quiet, reliable operation

850W ATX 3.1 power supply for gaming

The darkFlash DF-DG-850-BK delivers 850W of continuous power for high-performance gaming PCs and creator systems. Its single +12V rail design provides strong output for power-hungry CPUs and modern graphics cards. The fully modular cable system allows cleaner builds with improved airflow inside the case.

Capacity and headroom for modern GPUs and CPUs

The unit supports ATX 3.1 and PCIe 5.1 standards with a native 12V-2x6 connector delivering up to 600W directly to graphics cards without adapters. 80 PLUS Gold certification ensures over 90% efficiency under typical loads. Builds requiring more than 850W total system power will need a higher capacity unit.

Thermals, noise and power draw in normal use

A 120mm HDB fan balances cooling performance with quiet operation during typical workloads. The compact 140mm depth fits most PC cases while maintaining effective thermal management. Comprehensive protection circuits including OVP, OPP, OCP, UVP, SCP, OTP and NLP safeguard components during power anomalies.

Highlights

  • 850 W continuous power drives demanding CPUs and GPUs
  • Native 12V-2x6 cable supplies up to 600 W to modern graphics cards without adapters
  • 80 PLUS Gold certification delivers over 90 % efficiency at typical loads
  • Fully modular design and compact 140 mm depth simplify cable routing and improve airflow
  • 120 mm HDB fan and seven protection circuits ensure quiet, reliable operation

Specifications

BranddarkFlash
ModelDF-DG-850-BK
Part NumberDF-DG-850-BK
ColorBlack
TypeATX 3.1 Ready, PCIe 5.1 Ready
Maximum Power850 W
PFCActive
Main Connector20+4Pin
Energy-Efficient80 PLUS GOLD Certified
ProtectionOver voltage (OVP)
Over load (OPP)
Over current (OCP)
Under voltage (UVP)
Short circuit (SCP)
Overheat (OTP)
Zero load (NLP)
Connectors6 x SATA
Dimensions140*150*86mm
Shipping weight2.22 kg
Package size292 × 198 × 127 mm

Other versions of this model

1 more in the same range

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Questions about this item

Will the native 12V-2x6 cable work with my older graphics card that uses 8-pin PCIe power?

Yes, the fully modular design lets you swap the 12V-2x6 cable for the included PCIe 8-pin cables that use 18AWG wire, so older GPUs connect without adapters.

How can I verify the 80 PLUS Gold efficiency is active after installation?

Under typical loads the unit delivers over 90 percent efficiency; you can confirm this with a wall power meter or software that reads the PSU's internal monitoring if your motherboard supports it.

Which cables come in the box and what must I source separately for a standard build?

The box includes the 20+4 pin main connector, a native 12V-2x6 GPU cable, PCIe 8-pin cables, and six SATA cables; no extra cables are needed for a typical ATX 3.1 system.

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