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Black rectangular ATX power supply unit with 135 mm fan and modular cable sockets

MSI

MSI MPG A850G PCIE 5.0 850W power supply

SKU CH-8K68-VJ15Y

Fully modular 850 W ATX 3.0 unit with a 12VHPWR connector, 80 PLUS Gold efficiency and a 135 mm fan

  • Max wattage850 W
  • Power efficiencyUp to 90%
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm
  • Power factor correctionActive
  • 12V railsSingle
  • 850 W output supports high-end graphics cards
  • 80 PLUS Gold certification delivers up to 90 % efficiency
  • Full modular design with flat cables keeps the build tidy
  • PCIe 5.0 and ATX 3.0 compatibility includes a 16-pin connector
  • 135 mm fan with zero-RPM mode runs quietly at low load

850 W ATX 3.0 power supply

This 850 W unit is built to the ATX 3.0 standard and carries 80 PLUS Gold certification for up to 90 percent efficiency. A fully modular cable set and a 135 mm fan with a zero-RPM mode keep cable clutter and noise low. It is aimed at builders assembling a high-end gaming PC that needs a native 12VHPWR connection.

Check ATX 3.0 support and case depth

Verify that your motherboard and graphics card are designed for ATX 3.0 power delivery before ordering. The power supply is 150 mm deep, so confirm the case can accommodate that length. A 100 to 240 V input range covers global mains voltages without a switch.

Fits mid-tower builds with modern GPUs

The single +12 V rail and DC-DC module design deliver stable power to a PCIe 5.0 graphics card through the included 16-pin cable. Two EPS cables, two 6+2-pin PCIe cables and twelve SATA connectors handle the rest of the system. Full modularity lets you connect only the cables the build requires.

How it compares

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

Price $89.99
Cheaper than about 72% 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 A850G PCIE5
Product colorBlack
Product typeATX 3.0 Compatible
Ports & slots
PCIe power connectors2 × 6+2-Pin
SATA power connectors12
Power
Max wattage850 W
Power efficiencyUp to 90%
Modular cablingFull Modular
Power factor correctionActive
12V railsSingle
Efficiency certification80 PLUS GOLD Certified
Built-in protectionOCP,OVP,OPP,OTP, SCP,UVP
Supply voltage100–240 V
AC input frequency50/60 Hz
Size & build
Product dimensions150 × 150 × 86 mm / 5.9 in × 5.9 in × 3.4 in
Compatibility
PSU length limit150 mm
Environment & compliance
PSU noise ratingCybenetics Standard ++
More details
Fan configuration1 × 135 mm

Questions about this item

What cables are included in the box and is a 12VHPWR cable supplied?

The box includes one ATX cable, two EPS cables, two PCIe 6+2-pin cables, one 16-pin to 16-pin PCIe 5.0 cable, one 16-pin to 6+2-pin cable, three SATA cables and one Molex/FDD cable. The 12VHPWR cable is the included 16-pin to 16-pin PCIe 5.0 cable.

Should I choose this 850W unit or a lower wattage model for a build with a 4080 or 4070 graphics card?

The 850W rating and ATX 3.0 compliance with the native 16-pin PCIe 5.0 connector match the power requirements for 4080 and 4070 cards, providing the recommended headroom for transient spikes.

What does the 850W figure mean once the PSU is installed in a system?

It means the unit can continuously deliver 850W across a single +12V rail with up to 90% efficiency at typical loads, meeting 80 PLUS Gold and Cybenetics Standard++ noise ratings while protections guard against over-current, over-voltage and over-temperature events.

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