MSI MPG A1250GS PCIE5 1250W 80 PLUS Gold Fully Modular Power Supply – Black | MPG A1250GS PCIE5
The MSI MPG A1250GS PCIE5 is a high-performance 1250W fully modular ATX 3.1 power supply featuring two native 600W 12V-2x6 connections. With 80 PLUS Gold efficiency, server-grade 105°C capacitors, flexible embossed cables, a 135mm FDB fan, and comprehensive protection, it is ideal for flagship gaming PCs and professional workstations.
Product Overview
The MSI MPG A1250GS PCIE5 is engineered for extreme gaming computers, professional workstations, and systems equipped with the latest power-intensive graphics cards. Its 1250W continuous output and powerful 104.1A +12V rail provide substantial headroom for flagship processors, premium GPUs, cooling equipment, and future upgrades.
Built for Intel ATX 3.1 and PCIe 5.1 hardware, this power supply can handle demanding transient loads from modern components. MSI specifies a power-excursion capability of up to 2,937W for 100 microseconds, helping maintain system stability during very short power spikes. msi.com
Two native 12V-2x6 connectors can each support up to 600W for compatible graphics cards, including NVIDIA GeForce RTX 50 Series models. The included dual-color connector design uses a visible yellow section, making it easier to confirm that the GPU cable has been inserted completely and securely.
The 80 PLUS Gold certification provides up to 90% operating efficiency, reducing wasted electricity and unnecessary heat. MSI uses 100% server-grade capacitors rated for operation at up to 105°C, along with active power-factor correction and a full set of industrial-level electrical protections. Power Supply｜MSI
A 135mm fluid-dynamic-bearing fan provides efficient, low-noise cooling. Fully modular embossed-jacket cables offer improved flexibility and easier routing, while the adjustable cable organizer helps keep internal wiring neat. Despite its high output, the compact enclosure measures only 150 × 150 × 86mm. msi.com
Please check the official manufacturer website for the latest and most accurate compatibility, clearance, radiator, fan, and I/O specifications before purchase or finalizing a build.
Key Features
- ⚡ 1250W Continuous Power Output
- 🥇 80 PLUS Gold Efficiency
- 🔌 Fully Modular Cable Design
- ✅ Intel ATX 3.1 Ready
- 🎮 PCIe 5.1 Ready
- 🔋 2 × Native 600W 12V-2x6 Connections
- 🟡 Dual-Color GPU Connectors
- 🚀 Up to 2,937W Power Excursion
- 🌡️ 100% Server-Grade 105°C Capacitors
- 🌀 135mm Fluid-Dynamic-Bearing Fan
- 🧵 Flexible Embossed-Jacket Cables
- 🗂️ Adjustable Cable Organizer
- ⚡ Active Power Factor Correction
- 📦 Compact 150mm-Long Enclosure
- 🛡️ Comprehensive Industrial-Level Protection
- ⚫ Black Finish
Technical Specifications
| Category | Power Supply |
| Manufacturer | MSI |
| Model | MPG A1250GS PCIE5 |
| Wattage | 1250W |
| Efficiency | 80 PLUS Gold |
| Form Factor | ATX |
| Modular | Fully Modular |
| ATX Standard | PCIe 5.1 Generation |
| GPU Power Connector | 2 × 600W PCIe 5.1 16-pin |
| Fan | 135mm FDB |
| Color | Black |
| Warranty | Manufacturer Warranty |
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