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    MSI MAG A850GL PCIE5, Fully Modular Compact Gaming 850W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-color 12V-2x6 cable, 10 Year Warranty

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    • 2026 ATX 3.1 (1000W)
    • 2026 ATX 3.1 (650W)
    • 2026 ATX 3.1 (750W)
    • 2026 ATX 3.1 (850W)
    • ATX 3.0 (650W)
    • ATX 3.1 (1000W)
    • ATX 3.1 (1250W)
    • ATX 3.1 (750W)
    • ATX 3.1 (850W)
    • ATX 3.1 (850W) White
    • ATX 3.1 (1000W) White
    🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available
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    Overview
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    Reviews (435)
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    MSI MAG A850GL PCIE5 power supply
    MSI MAG A850GL PCIE5 power supply

    Overflow with Power

    The MAG A850GL PCIE5 power supply offers 80 PLUS Gold-certified energy efficiency, ATX 3.0 compatibility, PCIe 5.0 GPU support (up to 600W), and a Fluid Dynamic Bearing (FDB) fan for quiet and stable performance.

    MSI MAG A850GL PCIE5 power supply

    80 PLUS Gold

    The efficiency of a power supply directly influences system performance and power consumption.

    An 80 PLUS Gold certified rating means higher efficiency (up to 90%) and reduces internal thermal loading.

    MSI MAG A850GL PCIE5 power supply

    ATX 3.0 Compatible, Fully Modular

    Being ATX 3.0 compatible, the MAG A850GL PCIE5 power supply can handle up to 2x total power excursions and 3x GPU power excursions.

    A fully modular design means that only the connectors required for by the build are used. This significantly reduces cable clutter, simplifies the overall build and improving airflow.

    MSI MAG A850GL PCIE5 power supply

    PCIe 5.0 GPU Supported

    The MSI MAG A850GL PCIE5 power supply features extra GPU power feeds (4 x 8-pin VGA connectors) to support a broad array of NVIDIA and AMD graphics cards.

    Alternatively, through the native 16-pin PCIe connector, the PSU can provide up to 600W of power to a PCIe 5.0 GPU.

    MSI MAG A850GL PCIE5 power supply

    Compact Size

    A compact 140 mm-long and 150 mm-wide ATX form factor ensures a comfortable and easy fit in most PC cases. This frees up more space for cable management and airflow to the rest of the system.

    MSI MAG A850GL PCIE5 power supply

    Flat Black Cables

    The flat black cables allow for improved cable management and provide more space for airflow.

    Because of its fully modular design, only the necessary cables need to be plugged in and the rest can be stored in the supplied cable bag.

    MSI MAG A850GL PCIE5 power supply

    Fluid-Dynamic Bearing Fan

    Developed for quiet and stable operation, a 120 mm Fluid-Dynamic Bearing achieves a good balance between cooling performance and noise level.

    MSI MAG A850GL PCIE5 power supply

    Extensive Connectivity

    By offering a wide range of connectivity options, the MAG A850GL PCIE5 power supply guarantees extensive hardware support. Connect multiple hard drives, SSDs, graphics cards and other components to satisfy your needs.

    The cable connectors are made of premium copper alloy, which offers better current surge protection than generic phosphor bronze.

    MSI MAG A850GL PCIE5 power supply

    Output Specifications

    Robust internals support a wide range of AC inputs, while delivering stable output for high performance components.

    MSI MAG A850GL PCIE 5 Gaming Power Supply - Full Modular - 80 PLUS Gold Certified 850W - Compact Size - ATX PSU

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Limited Warranty period (parts): 5 years
    • Limited Warranty period (labor): 5 years
    • Read full details

    Return Policies

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    The MSI MAG A850GL PCIE5 is an 850W fully modular ATX power supply for gaming PCs with high-performance GPUs. It is suitable for builders who want 80 PLUS Gold efficiency, ATX 3.1 and PCIe 5.1 readiness, a native 12V-2x6 cable, comprehensive protections, and a 10-year warranty.

    Recommended For

    • PC gamers building or upgrading a single-GPU system with an RTX 4070, RTX 4080-class, or similar graphics card who want 850W of capacity and a native 16-pin GPU power connection.
    • DIY builders who want easier installation and cleaner cable management from a fully modular PSU, especially when assembling a new gaming PC or replacing an older non-modular unit.
    • Builders working with ATX cases that have limited PSU clearance and need a shorter 140mm-long power supply without moving to a lower-power class.
    • Value-focused gaming PC builders who want modern ATX 3.x and PCIe 5.x compatibility, Gold-rated efficiency, and tested electrical performance without specifically shopping for a premium enthusiast PSU.

    Real-World Use Scenarios

    • A user building a modern gaming PC with a GeForce RTX 4070 Ti, RTX 4080-class, or similar graphics card can connect the GPU directly with the included native 16-pin PCIe cable, reducing the need for adapter cables and simplifying installation.
    • When assembling a new gaming PC, the fully modular design lets the user install only the required motherboard, CPU, GPU, and storage cables, which can make routing cables easier and leave more room behind the motherboard tray.
    • A user fitting a power supply into a compact ATX or micro-ATX case can benefit from the 140 mm length, especially when the case has limited clearance near front-mounted radiators, drive cages, or cable-management space.
    • During typical gaming at moderate system load, the power supply should provide sufficient capacity for an 850 W-class gaming build, while the fan may become clearly audible during sustained high-load gaming or stress testing rather than remaining silent at all times.
    • A user planning to upgrade the graphics card later can keep the same PSU for a future PCIe 5.x GPU build, provided the complete system remains within the unit’s 850 W capacity and the case supports the required cable bend radius.