MSI MPG A1250GS PCIE5 II 1250W Fully Modular Power Supply, 80+ Gold, ATX 3.1

Product Overview

The MSI MPG A1250GS PCIE5 II is a 1250W fully modular power supply designed for compatible desktop computer builds and upgrades. Its 80 PLUS Gold designation identifies its efficiency class, while ATX 3.1 support and PCIe 5 compatibility make it a relevant choice for systems built around current-generation components. The substantial 1250W capacity is intended to provide power for demanding configurations, with the actual requirements depending on the processor, graphics card, and other components in the finished system.

A fully modular design lets builders connect the power cables their system needs rather than leaving unused attached cables inside the case. This can help make cable routing more manageable and keep the build organized. Before purchase or installation, confirm that the power supply dimensions, connector requirements, and electrical needs are suitable for your case and components.

Key Features

• 1250W rated capacity: Provides a high-power supply option for compatible desktop PC configurations. Check your component manufacturers’ recommendations to ensure the selected capacity and connections suit your build.

• 80 PLUS Gold: Carries an 80 PLUS Gold efficiency classification. Efficiency describes conversion of incoming AC power to DC output under applicable test conditions; actual results vary with system load and operating conditions.

• ATX 3.1: Identified as an ATX 3.1 power supply, for use in compatible systems. Verify platform and component compatibility before installation.

• PCIe 5 support: The product name identifies PCIe 5 compatibility. Confirm the specific connector type and cable requirements against the graphics card and the unit’s supplied documentation.

• Fully modular cabling: Power cables are detachable at the power-supply end, allowing builders to connect the leads required for their system and simplify cable management.

• MSI MPG series: A power component carrying the MSI MPG product designation, with model identification MPG A1250GS PCIE5 II for matching and compatibility checks.

Technical Specifications

• Brand: MSI.

• Model / MPN: MPG A1250GS PCIE5 II.

• Product type: Desktop computer power supply unit (PSU).

• Rated power: 1250W, as stated in the confirmed product title.

• Efficiency classification: 80 PLUS Gold.

• Form factor standard: ATX 3.1, as stated in the confirmed product title.

• Interface / compatibility designation: PCIe 5, as stated in the model name and title. Check the exact cable and connector requirements for your components.

• Cable configuration: Fully modular.

• UPC: 824142424360.

• Speed / kit: Not applicable; this is a power supply, not a memory or storage product.

What’s in the Box

• MSI MPG A1250GS PCIE5 II 1250W power supply unit.

• Modular power cables and any other included accessories should be confirmed from the actual package contents. The confirmed product information does not specify an exact cable count or accessory list.

Please review the product label and included documentation for installation instructions, electrical ratings, cable identification, and any additional package contents. Do not mix modular power-supply cables from different PSU models, as cable pinouts may vary and incorrect cables can damage components.