MSI (MPG A1250GS PCIE5), 1250 W, 100 - 240 V, 50/60 Hz, Power Supply

Power outages or unstable voltages can crash a high-end PC, especially when running demanding graphics cards or AI workloads. The MSI (MPG A1250GS PCIE5), 1250 W, 100 - 240 V, 50/60 Hz, Power Supply delivers reliable, clean power so you can game, stream or compute without fear of sudden shutdowns. Its modern ATX 3.1 and PCIe 5.1 support means it’s ready for today’s most power-hungry components, keeping your system stable and efficient.

MSI Power Supply

A weak or inefficient power source forces your components to work harder, generates excess heat and can shorten the life of expensive hardware. This PSU solves those issues by providing a solid 1250 W of continuous power with 90 % efficiency, reducing waste heat and electricity costs. The active PFC ensures a smooth, stable current, while the semi-passive cooling keeps noise to a minimum, giving you a quiet yet powerful foundation for any build.

Usages of a 1250 W Power Supply

Ideal for high-performance gaming rigs, professional workstations and AI-focused PCs, this unit powers multiple GPUs, numerous storage drives and demanding peripherals without strain. Its fully-modular cabling lets you route wires neatly, improving airflow and making installation easier in any ATX case.

Benefits of MSI Power Supply

You gain confidence that your system will stay on during marathon gaming sessions, thanks to the robust 1250 W capacity. The 80 PLUS Gold certification cuts your electricity bill while delivering consistent power. Semi-passive cooling means the fan only spins when needed, keeping your room quiet. Fully-modular cables reduce clutter and improve cooling efficiency. Active PFC protects sensitive components from voltage spikes, extending their lifespan.

Key Features of a 1250 W Power Supply

• Efficiency: 90 %. High efficiency reduces heat and saves energy.
• Max output current (+5Vsb): 3 A. Provides reliable standby power for USB devices.
• Max output current (-12V): 0.3 A. Supports legacy components that need low-voltage rails.
• Max output current (+5V): 22 A. Supplies ample power for motherboard and peripherals.
• Combined power (+12V): 1249 W. Handles multiple high-end GPUs and CPUs simultaneously.
• Power Factor Correction type: Active. Ensures clean, stable electricity flow.
• Cabling type: Fully-Modular. Allows custom cable management and better airflow.
• PCI Express power connectors (6+2 pin): 1. Connects a single high-power graphics card.
• EPS power connector (4+4 pin): Yes. Powers modern CPUs securely.
• Number of SATA power connectors: 8. Supports numerous SSDs and HDDs.
• Number of Peripheral (Molex) power connectors: 4. Enables additional legacy devices.
• Fan diameter: 13.5 cm. Provides effective cooling in a compact size.
• Cooling type: Semi-passive. Fan runs only under load for silent operation.
• Dimensions (HxWxD): 150 mm × 150 mm × 86 mm. Fits standard ATX cases comfortably.
• Weight: (not listed). Designed for easy handling and installation.

Specifications