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MSI MAG A1200PLS PCIE5, Fully Modular Gaming 1200W Power Supply, 80+ Platinum, Native 12V-2x6 Cables, GPU Safeguard, 105°C Main Capacitor, Fan Safeguard, ATX 3.1 & PCIe 5.1 Ready, 10 Year Warranty9.8Our score 4 photos
MBrandmsiMmsi224 products in our catalogSee all msi products →ID DBD-18514

MSI MAG A1200PLS PCIE5, Fully Modular Gaming 1200W Power Supply, 80+ Platinum, Native 12V-2x6 Cables, GPU Safeguard, 105°C Main Capacitor, Fan Safeguard, ATX 3.1 & PCIe 5.1 Ready, 10 Year Warranty

9.8/10 our score 5.0 (5 ratings on Amazon)

GPU SAFEGUARD - This PSU provides real-time current protection. This proactive mechanism delivers an early alert if it detects the 12V-2x6 c

Form FactorATX

About this item

  • GPU SAFEGUARD - This PSU provides real-time current protection. This proactive mechanism delivers an early alert if it detects the 12V-2x6 current in an abnormal status, allowing users to resolve the issue immediately.
  • 80 PLUS PLATINUM CERTIFIED – With 80 PLUS Platinum certification (up to 92% efficiency), this PSU is ideal for powering hardware with high energy demands, such as high-end GPUs and CPUs.
  • NATIVE 12V-2x6 CONNECTOR - Equipped with a native 12V-2x6 PCIe connector, it can deliver up to 600W of power to support PCIe 5.1 GPUs.
  • DURABLE DESIGN - This power supply is equipped with a 135 mm Fluid-dynamic bearing (FDB) fan, designed to enhance durability. The UL embossed jacket modular cables with premium copper alloy connectors to ensure reliable performance.
Category: PC Parts › Internal Power SuppliesRanked #99 of 616 in PC Parts
9.8Our score
Our verdict

GPU SAFEGUARD - This PSU provides real-time current protection. This proactive mechanism delivers an early alert if it detects the 12V-2x6 c

Ranked #99 in PC Parts · 4 things we like

Featuring ATX 3.1 and PCIe 5.1 support with native 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.

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Product information

18 specifications
Compatible DevicesComputer
Connector Type Used on CableATX
Output Wattage1200 watts
Form FactorATX
Wattage1200 watts
Cooling MethodAir
Number of Fans1
System Bus Connector TypeATX
Item Dimensions11.89 x 8.86 x 5.08 inches
Item Weight7.5 pounds
EU Spare Part Availability Duration10 years
Model NameMAG A1200PLS PCIE5
Brandmsi
Number of Items1
Unit Count1 Count
Warranty Description10 Years
Connector TypeATX
Item dimensions L x W x H11.89 x 8.86 x 5.08 inches

Pros & cons

What we like
  • GPU SAFEGUARD - This PSU provides real-time current protection. This proactive mechanism delivers an early alert if it detects the 12V-2x6 current in an abnormal status, allowing users to resolve the issue immediately.
  • 80 PLUS PLATINUM CERTIFIED – With 80 PLUS Platinum certification (up to 92% efficiency), this PSU is ideal for powering hardware with high energy demands, such as high-end GPUs and CPUs.
  • NATIVE 12V-2x6 CONNECTOR - Equipped with a native 12V-2x6 PCIe connector, it can deliver up to 600W of power to support PCIe 5.1 GPUs.
  • DURABLE DESIGN - This power supply is equipped with a 135 mm Fluid-dynamic bearing (FDB) fan, designed to enhance durability. The UL embossed jacket modular cables with premium copper alloy connectors to ensure reliable performance.
What could be better

    Customer reviews

    All reviews on Amazon
    5.05 global ratings
    5 star100%
    4 star0%
    3 star0%
    2 star0%
    1 star0%

    Breakdown from the 2 most helpful reviews we imported.

    A
    Amazon Buyer
    Verified purchaseMay 17, 2026
    Amazing Value for a Platinum 1200W Power Supply

    I got this PSU delivered pretty quickly and faster than I expected. This 80+ Platinum 1200W power supply is more than sufficient to run any RTX 5080 system. What I like the most is the GPU Safeguard technology where each pin on the high power connector has it's own sensor. The power supply will beep if you are going past the recommended voltage to prevent any damage to your GPU. Overall a great power supply for the price and the built in features helps it stand out from competitors.

    R
    rip pop smoke
    Verified purchaseMay 19, 2026
    Platinum grade psu with 10 yr warranty

    new build with my 5090 and 7900x and i didn’t have any spare psu. decided to future proof a bit getting 1200. Friends told me to try out msi or seasonic or corsair . i liked that this one has the platinum grade and the year 10 warranty. played couple games all day and it has been quiet too which is noticeably more silent under load compared to my old psu

    Customer reviews are shown as published on Amazon and are not written by Do Best Deal.