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White ATX power supply unit with modular cables and 120mm fan

MSI

MSI MAG A850GL PCIE5 WHITE power supply 850W 80+ Gold ATX 3.1 PCIe 5.1

SKU CH-F9W5-2X3Q7 MPN MAG A850GL PCIE5 WHITE

Fully modular 850 W ATX 3.1 unit with native 12V-2x6 PCIe 5.1 connector, 80 Plus Gold efficiency and 120 mm FDB cooling

  • Max wattage850 W
  • Power efficiency> 85%
  • Modular cablingNo
  • Fan configuration1 × 120 mm Fluid Dynamic Bearing
  • Power factor correctionActive
  • Main power connector20+4 Pin

Type ATX 3.1 (850W) White

  • 80 Plus Gold efficiency reduces waste heat and lowers energy draw
  • ATX 3.1 and PCIe 5.1 native connector deliver up to 600 W to RTX graphics cards
  • Fully modular flat cables keep the build tidy and airflow clear
  • 120 mm fluid dynamic bearing fan runs quietly under load
  • LLC full-bridge topology with DC-DC modules provides stable voltage rails

Compact 850 W ATX 3.1 unit

This MSI MAG A850GL PCIE5 WHITE power supply delivers 850 W through an ATX 3.1 and PCIe 5.1 ready design. The 80 PLUS Gold rating means up to 90 % efficiency, reducing waste heat. A fully modular layout with flat cables keeps the build tidy and airflow clear. The 120 mm fluid dynamic bearing fan runs quietly while moving air through the compact frame.

Check cables and clearances

Verify that your case accepts a standard ATX form factor and that the 120 mm fan has an unobstructed intake path. The unit provides one native 12V-2x6 connector rated for 600 W, two CPU 8/4-pin plugs, four PCIe 8/6-pin plugs, eight SATA and four Molex leads. Only connect the cables your components actually require.

Sustained load behaviour

Under continuous demand the LLC full-bridge topology with DC-DC modules keeps voltage regulation tight across the two +12 V rails. Active PFC and the full protection suite (OVP, OCP, OPP, OTP, SCP, UVP) maintain stable output without tripping. The Gold-rated efficiency curve limits internal temperature rise even during long sessions.

How it compares

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

Price $115.99
Cheaper than about 60% 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
Product lineRMx Series
Model nameMAG A850GL PCIE5 White
Product typeATX 12 V
Product colorWhite
Performance
Frequency50/60 Hz
Graphics
SLI supportCertified
Ports & slots
SATA power connectors16
Output type+5 V@20A, +3.3 V@20A
Connection types1 x MB (24/20 pins)
1 × 12VHPWR (PCI-E 5.0)
2 x CPU (8/4 pins)
4 x PCIe (8/6 pins)
8 x SATA (15 PIN)
4 x MOLEX (4 PIN)
1 x FDD (4 PIN)
12V power connector1 × 4 Pin ATX 12 V
Floppy connector1
Peripheral connector1
Power
Max wattage850 W
Power efficiency> 85%
Modular cablingNo
Power factor correctionActive
Main power connector20+4 Pin
12V rails2
Efficiency certification80 PLUS GOLD Certified
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current10A @ 115 V, 5A @ 230 V
Built-in protectionOVP, OCP, OTP, OPP, SCP, UVP
Peak wattage850
+3.3V max. current8A
+12V1 max. current9A
+12V2 max. current10A
+12V3 max. current30A
+12V4 max. current28A
+12V5 max. current29A
+12V6 max. current28A
+5VSB max. current5A
Size & build
Size or dimensions11.5 in × 9.25 in × 5 in
Product dimensions20'
Product weight2.889 kg
Shipping weight2.90 kg
Package size300 × 220 × 125 mm
Compatibility
PSU length limit150 mm
In the box
Included itemsMAG A850GL, MAGA850GLPCIE5WT, 1, false
Fans total quantity1
Environment & compliance
Top fans noise levelAir
More details
Fan configuration1 × 120 mm Fluid Dynamic Bearing
Fan LEDRGB
Top fans LEDBlue
Rear fans LEDBlue

Other versions of this model

5 more in the same range

Questions about this item

Will this unit fit a standard ATX case and deliver 850 W continuously?

Yes, it follows the ATX 12V form factor and is rated for 850 W maximum power.

Can I connect an RTX 40-series card without an adapter?

The PSU includes a native 12V-2x6 (12VHPWR) cable that supplies up to 600 W to a PCIe 5.0 graphics card.

How many SATA drives and CPU power cables can I run at once?

You have 16 SATA connectors and two 8/4-pin CPU cables available from the fully modular set.

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