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Rectangular black ATX power supply with modular cable ports and a single cooling fan

MSI

MSI MEG Ai1300P PCIE5 1300W ATX 3.0 power supply

SKU CH-N3XZ-FVZZR

Delivers 1300 W through a fully modular ATX 3.0 design with 80 PLUS Platinum efficiency and native 12VHPWR for 4080 and 4090 graphics cards

  • Max wattage1300 W
  • Power efficiencyup to 92%
  • Modular cablingFull Modular
  • Fan configurationHydro Dynamic Bearing
  • Power factor correctionActive
  • Main power connector24Pin
  • Delivers 1300 W for 4080 4090 builds
  • 80 PLUS Platinum certified for up to 92% efficiency
  • PCIe 5.0 and ATX 3.0 ready with 12VHPWR cable
  • Full modular design with sleeved cables for clean routing
  • Hydro Dynamic Bearing fan rated Cybenetics Standard ++

High-wattage ATX 3.0 power supply

The MSI MEG Ai1300P PCIE5 delivers 1300 W through a single +12 V rail and meets ATX 3.0 and PCIe 5.0 specifications. It targets builders running flagship graphics cards such as the 4080 or 4090 and workstations that demand sustained high loads. The 80 PLUS Platinum rating confirms up to 92 % efficiency at typical loads.

Full-modular installation with 150 mm depth

A full-modular cable set lets you connect only the leads you need, including eight 6+2-pin PCIe connectors, 16 SATA plugs and the 12VHPWR cable for modern GPUs. The 150 mm chassis fits most mid-tower and larger cases, but compact builds should verify clearance. Sleeved cables improve routing but add stiffness; plan bends before tightening screws.

Check GPU power needs and case length

Confirm your graphics card requires the 12VHPWR connector or multiple 6+2-pin leads before ordering. Measure the available PSU bay depth against the 150 mm unit length. Ensure the motherboard accepts a 24-pin main connector and that the 100-240 V input range matches your local mains supply.

How it compares

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

Price $213.99
Pricier than about 66% of the 10,869 comparable items (median $142.99).
Max wattage 1300 W
Higher than about 91% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameMSI
Model nameMEG Ai1300P PCIE5
Part numberMEG Ai1300P PCIE5
Product typeATX12 V
Ports & slots
PCIe power connectors8 × 6+2-Pin
SATA power connectors16
Power
Max wattage1300 W
Power efficiencyup to 92%
Modular cablingFull Modular
Power factor correctionActive
Main power connector24Pin
12V railsSingle
Power good signal100-500 ms
Efficiency certification80 PLUS PLATINUM Certified
Overvoltage protectionYes
Supply voltage100–240 V
AC input frequency50/60 Hz
Size & build
Product dimensions6.3 in × 5.91 in × 3.39 in
Compatibility
PSU length limit150 mm
Environment & compliance
PSU noise ratingCybenetics Standard ++
More details
Fan configurationHydro Dynamic Bearing

Questions about this item

How can I confirm the PSU is delivering stable power after installation?

The power-good signal triggers between 100 ms and 500 ms, showing the rails are within spec; the single +12 V rail design and 80 PLUS Platinum efficiency up to 92 % also indicate correct operation.

Which cables come in the box and what must I source separately?

The full-modular unit includes a 24-pin ATX connector, eight 6+2-pin PCIe connectors, sixteen SATA power connectors and a 12VHPWR cable for PCIe 5.0 graphics cards; no extra cables are required for standard builds.

Which capacity should I pick for a system with a 4080 or 4090 class GPU?

The 1300 W Platinum model is ATX 3.0 and PCIe 5.0 ready, providing ample headroom for a 4080 or 4090 plus other components while maintaining high efficiency and low noise.

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