MSI MPG A1250GS ATX 3.1 80 Plus Gold 1250W Power Supply
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About this product
- Brand
- MSI
- Store
- PC Case Gear
- Category
- Electronics > Electronics Accessories > Computer Components > Computer Power Supplies
- SKU
- MPG-A1250GS-PCIE5
Specifications
- Colour
- Gold
The MSI MPG A1250GSP ATX 3.1 Power Supply delivers a top-shelf power supply unit with a 1250W capacity. It offers an 80 PLUS Gold efficiency rating, fully modular cabling and a fluid dynamic bearing enabled 135mm fan, this power supply is ready for the most power hungry graphics cards including Nvidia(r) GeForce RTX 50 Series graphics cards.
Note: This GPU has only 1 PCIE 6+2 connector.
Features
Power Supply MPG A1250GS PCIE5
Lasting Durability Quietly Yours
Featuring ATX 3.1 and PCIe 5.1 support with two 12V-2x6 connectors, these PSUs are built to handle NVIDIA’s 50 series graphics cards and AI PCs with ease. Advanced thermal solutions ensure cool, stable, and efficient operation, even under heavy loads, giving you the reliability and durability you need for gaming, streaming, or AI-powered tasks.
MSI's premium MPG series is engineered for gamers who demand strong performance and sleek design. Each product showcases cutting-edge aesthetics and vibrant Colours, reflecting MPG's commitment to exceptional design. With optimised configurations, MPG creates a visually striking and powerful gaming experience that leads the trends.
- Supports Nvidia® GeForce RTX™ 50 series graphics cards
- 2 x native 12V-2x6 connector
- 235% Total Power Excursion
- 10 Year Warranty
- Dual-Colour 12V-2x6 cable
- 80 PLUS Gold certified
- Optimised the sound level
- 100% all Server-grade 105oC capacitor
- Embossed Jacket Cables, the cables are more bending and routing
- Industrial level protection with OCP/ OTP/ OPP/ SCP/ OVP/ UVP/ SIP/ NLO
Performance
Dual-Native 12V-2x6 Connector
This power supply stands as a cornerstone for powering advanced computing environments. Whether you're training machine learning models or image processing, this PSU ensures stability and performance without compromise.
ATX 3.1 - Ultimate Proof PSU
It has an output port that is compliant with Intel PSDG (Power Supply Design Guide) ATX 3.1, the power supply can hold up to 2x total power excursion and 3x GPU power excursion.

Semi Digital
This power supply comes with IC to control PFC, LLC significantly enhance accuracy.
This architecture enables managing dynamic adjustments, delivering more stable and efficient power output.
Gold Efficiency Certification
The efficiency of your power supply significantly impacts overall power consumption. The Gold certification stands out as a reliable benchmark for energy efficiency, ensuring that your power supply delivers lower energy consumption and operates at higher efficiency levels.
Server-Grade Electrolytic 105°C Capacitor
This power supply is built for outstanding quality and reliable performance, featuring 100% Server-grade 105°C capacitors along with advanced CoolMOS and SiC SBD components. It is designed for efficient power conversion and long-lasting, safe operation.
Thermal Design
Midnight Sound Level
This power supply is designed for quiet operation, delivering low noise levels like in the midnight, ensuring a serene computing experience free from disturbances.

Zero Fan Mode
The Zero fan mode ON, available to stop the fan's operation when TDP is below 55% to help with energy saving and providing silence.
Durability

Fan Bearing
Fluid Dynamic Bearing
This power supply's comes with 135 mm fan sports a fluid dynamic bearing, chosen to increase the life span of the fan while maintaining low noise level.
- Sleeve Bearing - 20,000 hr
- Fluid Dynamic Bearing - 60,000 hr

Alloy Copper Connector Terminals
The cable connectors are made of copper alloy terminals so that the power supply will be safer when there is a higher surge in current.

Safety Cable - Built for Maximum Safety
The power supply's cables, from the internal copper wires to the external high-density braided cover, are fully UL certified, ensuring superior safety and durability.
Protection
Protection Mechanisms
To make sure the entire system can operate safely and stably at all times, here comes with a number of protection mechanisms to give you the best peace of mind.
- OCP
- OTP
- OPP
- SCP
- OVP
- UVP
- SIP
- NLO
Surge Protection
This power supply features external voltage spike protection, making it a reliable choice for use in small-scale data centres where stability and safety are crucial.
EZ DIY

Dual-Colour 12V-2X6 Cable
The 12V-2x6 cable's connector Colour has been changed to yellow so that users can easily see if the connector has been plugged in properly.
Embossed Jacket Modular Cable
Using premium materials to enhance the cable's flexibility and bendability, the sleek matte black design not only elevates its appearance but also makes cable management significantly easier and more sophisticated for users.

Cable Organiser
Pre-install the cable Organiser to make organising cables more convenient. Additionally, the cable manager's position can be adjusted freely as needed.
Connectors
- ATX - (20 + 4PIN) x 1
- EPS - (4 + 4PIN) x 2
- PCIE 5.1 - (12V-2x6 PIN) x 2
- PCIE (6 + 2PIN) x 1
- SATA x8
- Peripheral (MOLEX) x 4
