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Black ATX power supply, 150 mm long, fully modular cables, single 135 mm fan

MSI

MSI MPG A1250GS PCIE5 1250W power supply

SKU CH-5ZE2-2V1BR MPN MPG A1250GS PCIE5

Fully modular 1250 W ATX power supply with dual native 12V-2x6 connectors for PCIe 5.1 GPUs, 80 Plus Gold efficiency up to 92%, compact 150 mm depth and a 135 mm FDB fan with zero-fan mode

  • ColorBlack
  • TypeATX12V
  • Maximum Power1250 W
  • Fans1 x 135 mm
  • PFCActive
  • +12V Rails2

Options ATX 3.1 (1250W) Dual 12V-2x6

  • 1250 W output handles demanding multi-GPU builds
  • 80 PLUS Gold certification delivers up to 92 % efficiency
  • Dual native 12V-2x6 connectors supply up to 600 W each for PCIe 5.1 graphics cards
  • Fully modular design with embossed jacket cables keeps the interior tidy
  • 135 mm FDB fan plus zero-fan mode runs near-silent at low loads

Power delivery for PCIe 5.1 graphics

This fully modular ATX12V unit delivers 1250 W and carries 80 PLUS Gold certification with up to 92 % efficiency. It includes two native 12V-2x6 connectors, each rated for 600 W, to support PCIe 5.1 graphics cards. The 135 mm fluid-dynamic bearing fan enables a zero-fan mode for quiet operation.

Cable reach and case fit

All cables are detachable, so only the required leads occupy space inside the chassis. The housing is 150 mm long and 150 mm wide, a compact footprint that eases routing and airflow in most ATX cases. Input voltage spans 100 to 240 V at 50 or 60 Hz for worldwide compatibility.

Protection and rail layout

Two +12 V rails feed the system, backed by OVP, OCP, OTP, OPP, SCP and UVP safeguards. Eight SATA power connectors are available for drives and peripherals. The embossed-jacket cables use premium copper-alloy contacts for reliable mating.

Highlights

  • 1250 W output handles demanding multi-GPU builds
  • 80 PLUS Gold certification delivers up to 92 % efficiency
  • Dual native 12V-2x6 connectors supply up to 600 W each for PCIe 5.1 graphics cards
  • Fully modular design with embossed jacket cables keeps the interior tidy
  • 135 mm FDB fan plus zero-fan mode runs near-silent at low loads

Specifications

BrandMSI
ModelMPG A1250GS PCIE5
ColorBlack
TypeATX12V
Maximum Power1250 W
Fans1 x 135 mm
PFCActive
+12V Rails2
SATA Power Connector8
Max PSU Length150 mm
ModularFull Modular
Energy-EfficientUp to 92%
ProtectionOVP/ OCP/ OTP/ OPP/ SCP/ UVP
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
Shipping weight3.63 kg
Package size305 × 229 × 127 mm

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Questions about this item

Is the 1250W unit the only capacity offered in this model?

Yes, the MPG A1250GS PCIE5 is sold as a single 1250W unit; there are no lower or higher wattage versions under this model number.

What does the 1250W rating deliver in a built system?

It provides up to 1250W of continuous power with up to 92% efficiency, dual +12V rails, and full protection circuits including OVP, OCP, OTP, OPP, SCP and UVP.

How do the 12V-2x6 connectors work with the PCIe 5.1 standard?

Two native 12V-2x6 cables each supply up to 600W, meeting the PCIe 5.1 power requirement for modern graphics cards.

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