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

MSI

MSI MAG A1250GL PCIE5 power supply

SKU CH-2WCC-AH7DA MPN MAG A1250GL PCIE5

A 1250 W ATX 3.1 power supply with 80 PLUS Gold efficiency, a 135 mm fluid dynamic bearing fan, fully modular cabling and a native 12V-2x6 PCIe 5.1 connector for 600 W GPU support

  • TypeATX 12V
  • Maximum Power1250 W
  • ModularNo
  • Fans1 x 135 mm Fluid Dynamic Bearing
  • PFCActive
  • Main Connector20+4 Pin

Type ATX 3.1 (1250W)

  • 80 PLUS Gold certified for up to 90 percent efficiency
  • ATX 3.1 ready handles up to 2x power excursions
  • PCIe 5.1 native 16-pin connector delivers 600W to GPU
  • Fully modular design uses only needed cables for better airflow
  • Compact 150 mm ATX frame fits space-efficient builds

1250 W ATX 3.1 power supply

The MSI MAG A1250GL PCIE5 delivers 1250 W of continuous power for high-end desktop builds. It meets the ATX 3.1 and PCIe 5.1 specifications and carries 80 PLUS Gold certification for up to 90% efficiency. A fully modular cable set lets you connect only the leads your system requires. The unit fits a compact 150 mm chassis depth.

Thermals noise and power draw

A single 135 mm fluid dynamic bearing fan handles cooling while the Gold-rated topology keeps waste heat low at typical loads. Active PFC corrects the power factor across the 100–240 V input range for stable draw. The dual +12 V rail design distributes current cleanly to the motherboard and graphics connectors. Efficiency above 85% reduces the thermal load inside the case during everyday use.

Sustained load behavior

Under prolonged demand the full-bridge LLC DC-to-DC conversion maintains tight regulation on the +12 V, 5 V and 3.3 V rails. The native 12V-2x6 connector can supply up to 600 W to a PCIe 5.1 graphics card without adapter cables. Protection circuits guard against over-voltage, over-current and short-circuit events during extended sessions. The 10-year manufacturer warranty period reflects the expected service life.

Punti di forza

  • 80 PLUS Gold certified for up to 90 percent efficiency
  • ATX 3.1 ready handles up to 2x power excursions
  • PCIe 5.1 native 16-pin connector delivers 600W to GPU
  • Fully modular design uses only needed cables for better airflow
  • Compact 150 mm ATX frame fits space-efficient builds

Caratteristiche tecniche

BrandMSI
ModelMAG A1250GL PCIE5
SeriesRMx Series
TypeATX 12V
Maximum Power1250 W
ModularNo
Fans1 x 135 mm Fluid Dynamic Bearing
PFCActive
Main Connector20+4 Pin
+12V Rails2
SATA Power Connector16
Efficiency> 85%
Energy-Efficient80 PLUS GOLD Certified
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
Input Current10A @ 115V, 5A @ 230V
Output+5V@22A, +3.3V@22A, [email protected] , [email protected] , +5VSB@3A
Connectors1 x ATX (24 PIN)
2 x EPS (4+4 PIN)
1x PCI-E 5.1 (16 PIN)
4 x PCI-E (6+2 PIN)
12 x SATA (15 PIN)
4 x MOLEX (4 PIN)
1 x Molex to FDD Adapter
ColorBlack
Max PSU Length150 mm
ProtectionOCP / OVP / OPP / OTP / SCP / UVP
Cable Spec20_plus_4_pin_atx, 1, ATX
Peak Power1250 watts
SLICertified
Approvalsnot_applicable
Size/Dimensions11.5 in x 9.25 in x 5 in
Dimensions20'
Weight3.502 kilograms
Package ContentMAGA1250GLPCIE5, 1, false
Frequency Range50/60 Hz
+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
12V Power Connector1 x 4 Pin ATX 12V
Floppy Connector1
Peripheral Connector1
Fans Total Quantity1
Top Fans LEDBlue
Top Fans Noise LevelAir
Rear Fans LEDBlue
FeaturesFull Modular, full, Air, ATX, 10 Year Limited Manufacturer, MAG A1250GL PCIE5
Peso di spedizione3.49 kg
Dimensioni del pacco305 × 241 × 127 mm

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Domande su questo articolo

Will the 150 mm length fit my compact ATX case?

The unit measures 150 mm long, so it fits most mid-tower and many compact ATX cases; check your case clearance before ordering.

Can the native 12V-2x6 connector deliver 600 W to my PCIe 5.1 graphics card?

Yes, the included 16-pin cable is rated for 600 W, meeting the PCIe 5.1 GPU power excursion requirement.

Do I need extra cables for a build with multiple drives and two EPS motherboard connectors?

The box supplies 12 SATA, 4 MOLEX, 2 EPS (4+4 PIN) and 4 PCI-E (6+2 PIN) cables, covering most high-end builds without extras.

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