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Black fully modular ATX power supply with 135 mm fan and braided cables, compact 150 mm depth

MSI

MSI MPG A850GS PCIE5 850W power supply

SKU CH-6F5A-X5CTH

Fully modular 850W ATX 3.1 unit with dual 12V-2x6 connectors, 80 Plus Gold efficiency and a quiet 135mm FDB fan

  • Max wattage850 W
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm
  • Power factor correctionActive
  • 12V rails2
  • SATA power connectors8
  • 850 W output powers demanding builds
  • 90% efficiency at 80 PLUS Gold cuts waste heat
  • Two native 12V-2x6 cables deliver 600 W each for PCIe 5.1 GPUs
  • 135 mm FDB fan with Zero Fan Mode keeps noise low
  • Compact 150 mm depth frees space for airflow and cables

Power for PCIe 5.1 builds

This 850 W fully modular ATX 3.1 power supply targets gamers and creators who need native 12V-2x6 connectors for modern graphics cards. It carries 80 PLUS Gold certification with up to 90 percent efficiency and includes a 135 mm fluid-dynamic bearing fan with a zero-fan mode for quiet operation.

Suited for dual-connector GPUs.

The unit provides two native 12V-2x6 cables, each rated for 600 W delivery, making it a direct fit for PCIe 5.1 graphics cards that use those connectors. Builders who require more than 850 W of continuous power or who need additional 12V-2x6 cables beyond the two supplied should consider a higher-capacity model.

Compact 150 mm depth with eight SATA connectors

At 150 mm long and 150 mm wide, the supply leaves extra room for cable routing and airflow in standard cases. It offers eight SATA power connectors for drives and peripherals, while the dual +12 V rails and full protection suite (OVP, OCP, OTP, OPP, SCP, UVP) maintain stable delivery up to the 850 W limit.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $56.99
Cheaper than about 87% of the 10,869 comparable items (median $142.99).
Max wattage 850 W
Typical for this category: the median of 930 items is 850 W.

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Specifications

Product
Brand nameMSI
Model nameMPG A850GS PCIE5
Product colorBlack
Ports & slots
SATA power connectors8
Power
Max wattage850 W
Modular cablingFull Modular
Power factor correctionActive
12V rails2
Efficiency certificationUp to 90%
Built-in protectionOVP/ OCP/ OTP/ OPP/ SCP/ UVP
Supply voltage100–240 V
AC input frequency50/60 Hz
Compatibility
PSU length limit150 mm
More details
Fan configuration1 × 135 mm

Questions about this item

Do I need a motherboard with an ATX 3.1 power connector for the MSI MPG A850GS PCIE5?

The PSU uses a standard 24-pin ATX connector, so any ATX-compatible motherboard will work; the ATX 3.1 label only describes the unit's own compliance.

Can I keep my older SATA SSDs and hard drives with this fully modular unit?

Yes, the package includes modular cables with eight SATA power connectors for legacy drives.

How can I confirm the fan's Zero Fan Mode is active after building the system?

At low loads the 135 mm FDB fan stops completely, so silence at idle indicates the mode is working.

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