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MSI · 1250 W · ATX

MSI MPG A1250GS

ATX 3.1 · 80 PLUS Gold · Modular

Capability: 85
Cap / price: 39
Wattage value: 45
Amazon: $220

View MSI MPG A1250GS Gallery in high resolution

$220

Available on Amazon Updated Aug 30, 2026 Prime FBA

Capability84.9

Capability / price38.6

Wattage value45.5

$220 on Amazon PSU table Compare this PSU

Size this PSU for a complete buildThe Builder unlocks PSU choices after it knows the CPU, GPU, case format, and estimated demand. Calculate build power first

Written analysis

MSI MPG A1250GS at a glance

The MSI MPG A1250GS is a 1250 W ATX power supply built to the ATX 3.1 generation. Efficiency is listed as 80 PLUS Gold. Cables are modular.

The calculated capability score is 84.9, averaging the available wattage, recorded efficiency percentage, and warranty inputs against fixed references. Listed warranty is 10 years. +12V output is 104 A.

Best fit: Systems whose component power budget calls for a supply rated at 1000 W or more.

Platform and cooling

Dimensions are listed as 150 x 150 x 86 mm . Cooling fan size is 135 mm. The unit uses 1 +12V rail at up to 104.10 A per rail. Certifications include 80 PLUS Gold.

Current value

At $220, price per kilowatt is $175.99. Capability / price is 38.6 and wattage value is 45.5. Compare nearby supplies below; wattage alone does not determine value.

Unit data

Full specifications

Wattage, efficiency, platform size, electrical outputs, connectors, cooling, and value in one technical sheet.

General

Manufacturer: MSI
PSU: MSI MPG A1250GS
Launch price: —
Amazon price: $220
Amazon availability: Available
Price updated: Aug 30, 2026

Power & efficiency

Wattage: 1250 W
Efficiency: 80 PLUS Gold
Recorded efficiency: 90%
Warranty: 10 years

Value

Amazon price: $220
Price / kW: $175.99
Capability: 84.9
Capability / price: 38.6
Wattage value: 45.5

Platform & size

ATX generation: 3.1
Form factor: ATX
Dimensions: 150 x 150 x 86 mm
Modular: Yes
Fanless: No

Electrical

Input voltage: 100-240
+12V output: 104 A
+5V output: 22 A
+3.3V output: 22 A
+12V rails: 1
Max amps / rail: 104.10 A

Cooling & build

Fan size: 135 mm
Fan stop: No
Certifications: 80 PLUS Gold

Additional information

Also listed as: MPG A1250GS
Color: Black

Amazon

Price history

Nearby capability

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MSI MSI MPG A1250GS This PSU

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Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

80 Plus Gold certified for high efficiency

Optimized sound level

2 x native 12V-2x6 connector

100% all Server-grade 105 C capacitor

Industrial level protection with OCP/ OTP/ OPP/ SCP/ OVP/ UVP/ SIP/ NLO

MSI MPG A1250GS at a glance

Platform and cooling

Current value

General

Power & efficiency

Value

Platform & size

Electrical

Cooling & build

Additional information

Price history

Similar PSUs

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