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Black rectangular ATX power supply with yellow 12V-2x6 cable and 135mm fan

MSI

MSI MAG A1000GLS PCIE5 1000W ATX 3.1 power supply

SKU CH-WC7J-P2E6R MPN MAG A1000GLS PCIE5

A compact ATX 3.1 unit delivers 1000 W with 80 PLUS Gold efficiency, a native 12V-2x6 connector for up to 600 W to PCIe 5.1 GPUs, and a 135 mm FDB fan rated Cybenetics A- for low noise

  • Max wattage1000 W
  • Fan configuration1 × 135 mm
  • Power factor correctionActive
  • Efficiency certification80 PLUS GOLD Certified
  • PSU noise ratingCybenetics A-
  • Supply voltage100–240 V

Type 2026 ATX 3.1 (1000W)

  • 80 PLUS Gold certified efficiency up to 90% reduces power draw
  • Native 12V-2x6 connector delivers up to 600W for PCIe 5.1 GPUs
  • ATX 3.1 ready handles 220% total power excursions
  • 135 mm FDB fan keeps noise at Cybenetics A- level
  • Compact 150 mm depth frees space for cables and airflow

1000 W ATX 3.1 power supply

The MSI MAG A1000GLS PCIE5 delivers 1000 W of continuous power with 80 PLUS Gold certification, reaching up to 90% efficiency. Its fully modular design and compact 150 mm depth suit builders who need high output in standard ATX cases. The unit targets systems built around modern GPUs and CPUs with demanding transient loads.

Native 12V-2x6 connector for 600 W GPU support

A native 16-pin 12V-2x6 cable supplies up to 600 W to a single PCIe 5.1 graphics card such as the RTX 50 series. The connector includes yellow highlights to confirm full insertion. Total power excursions of 220% and GPU excursions of 3x are handled per the ATX 3.1 specification, giving headroom for short spikes.

ATX 3.1 and PCIe 5.1 interface limits

The PSU complies with ATX 3.1 and PCIe 5.1 standards, supporting 100-240 V input and active PFC. Protection circuits cover over-current, over-temperature, over-power, short-circuit, over-voltage, under-voltage, surge and no-load conditions. A 135 mm fluid-dynamic bearing fan keeps noise at Cybenetics A- levels.

How it compares

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

Price $110.99
Cheaper than about 63% of the 10,869 comparable items (median $142.99).
Max wattage 1000 W
Higher than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameMSI
Model nameMAG A1000GLS PCIE5
Product colorBlack
Product typeATX12 V
Power
Max wattage1000 W
Power factor correctionActive
Efficiency certification80 PLUS GOLD Certified
Supply voltage100–240 V
Size & build
Shipping weight3.13 kg
Package size305 × 254 × 152 mm
Environment & compliance
PSU noise ratingCybenetics A-
More details
Fan configuration1 × 135 mm

Other versions of this model

5 more in the same range

Questions about this item

Will the native 12V-2x6 cable power my RTX 50 series GPU without an adapter?

Yes, the 16-pin 12V-2x6 connector delivers up to 600 W directly to a PCIe 5.1 graphics card, so no adapter is required.

How can I verify the 135 mm FDB fan is running quietly as specified?

Cybenetics A- noise certification confirms low acoustic output; in a typical build the fan stays near inaudible levels under normal loads.

Which cables are included and what must I purchase separately?

The fully modular unit ships with the 12V-2x6 GPU cable, 24-pin ATX, CPU and peripheral cables; no extra cables are needed for a standard ATX 3.1 build.

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