MSI MAG SERIES POWER SUPPLY
MSI MAG A1000GLS PCIE5 1000W 80 PLUS Gold Power Supply
High-capacity 1000W power delivery with ATX 3.1, PCIe 5.1 support, a native 600W-capable 12V-2x6 GPU cable and fully modular cabling for modern gaming and workstation builds.
MSI MAG A1000GLS at a Glance
Introduction
The MSI MAG A1000GLS PCIE5 1000W Power Supply is built for modern gaming PCs, enthusiast systems and demanding workstation configurations that require substantial power capacity and support for current graphics-card power connections.
Its 1000W continuous output and 80 PLUS Gold certification provide a powerful foundation for compatible high-performance systems. The PSU supports Intel ATX 3.1 and PCIe 5.1, and includes a native dual-colour 12V-2x6 cable rated for up to 600W for compatible graphics cards.
The fully modular design allows you to connect only the cables needed for your system. Embossed jacket cables are designed to make routing and bending easier during installation, helping keep the inside of the cabinet organised.
A 135mm fluid dynamic bearing fan, active PFC and a main capacitor rated for 105°C support cooling, power conversion and long-term operation. MSI also specifies support for power excursions up to 2200W for 100 microseconds.
Key Features
1000W Continuous Power
Provides 1000W of rated output, with up to 999.6W available on the +12V rail for compatible processor and graphics-card power requirements.
80 PLUS Gold Efficiency
Gold-rated power conversion, advertised at up to 90% efficiency, helps reduce energy wasted as heat under suitable operating conditions.
Native 12V-2x6 GPU Cable
Includes a dual-colour 12V-2x6 cable rated for up to 600W, designed for compatible modern graphics cards with a 16-pin power connection.
ATX 3.1 and PCIe 5.1
Designed to meet the ATX 3.1 power-supply standard and support PCIe 5.1-compatible graphics-card power connections.
135mm Fluid Dynamic Bearing Fan
The fluid dynamic bearing fan is designed to deliver cooling with reduced mechanical friction. MSI highlights an optimised sound level for quieter operation.
Comprehensive Protection
Includes over-current, over-temperature, over-power, short-circuit, over-voltage, under-voltage, surge and no-load protection mechanisms.
Power Delivery and Cooling Technology
The MAG A1000GLS PCIE5 features active power factor correction and a +12V rail rated at 83.3A, equivalent to 999.6W. This provides substantial power capacity for compatible processors, graphics cards and other system components.
ATX 3.1 support is designed to handle short-duration power excursions. MSI specifies a maximum power excursion of 2200W for 100 microseconds, equivalent to 220% of the rated PSU output, alongside support for up to three times GPU power excursions.
The native PCIe 5.1 12V-2x6 connector supports up to 600W and uses a dual-colour cable design intended to make the connection easier to inspect during installation. Always ensure the connector is fully inserted and follow the graphics-card manufacturer's installation guidance.
A 135mm fluid dynamic bearing fan and a main capacitor rated for 105°C support thermal management and component durability. The actual fan noise and power-conversion efficiency depend on operating conditions and system load.
Technical Specifications
Specifications are based on MSI's official product documentation. Verify connector requirements and complete system power demand before purchase. The model's protection list includes OCP, OTP, OPP, SCP, OVP, UVP, SIP and NLO.
Ideal Use Cases
High-Performance Gaming
A suitable option for compatible gaming systems that require 1000W of continuous power and a native 16-pin GPU connection.
AI and GPU Workstations
Can support compatible GPU-accelerated workloads when the graphics card, CPU and other components fit within the PSU's power budget.
Content Creation
Provides power capacity for suitable video-editing, rendering, 3D production and development systems.
Clean Custom Builds
The fully modular design and embossed cables help improve cable routing and simplify the assembly of a carefully planned PC build.
Before You Build
- Check the graphics-card and processor manufacturers' recommended PSU wattage and confirm the power needs of the complete system.
- The native 12V-2x6 cable is rated for up to 600W. Confirm that your graphics card supports this connection and follow its installation instructions.
- Ensure the 16-pin connector is fully seated and avoid sharp bends or sideways pressure close to the connector housing.
- Use only the modular cables supplied with this PSU or cables explicitly confirmed as compatible with this exact model. PSU-side pinouts are not universally interchangeable.
- Confirm the cabinet supports the PSU's 150 × 150 × 86mm dimensions and leaves enough room for cables and airflow.
- Power-excursion capability does not replace the need to check sustained load, GPU recommendations and the complete system's power requirements.
Frequently Asked Questions
1. Is the MSI MAG A1000GLS a 1000W power supply?
Yes. The MAG A1000GLS PCIE5 is rated for 1000W of continuous power, with up to 999.6W available on its +12V rail.
2. Is this PSU fully modular?
Yes. Its power cables are detachable, allowing you to connect only the cables needed for your components and simplify cable management.
3. Does the MSI MAG A1000GLS support ATX 3.1 and PCIe 5.1?
Yes. MSI lists ATX 3.1 and PCIe 5.1 support, including a native 12V-2x6 GPU power connection for compatible modern graphics cards.
4. How much power can the native 12V-2x6 cable deliver?
MSI rates the included PCIe 5.1 16-pin cable for up to 600W. The graphics card must support the connector, and the connection must be installed according to the manufacturer's instructions.
5. What does 80 PLUS Gold mean?
It is a power-efficiency certification. MSI advertises efficiency of up to 90%; actual efficiency varies with the PSU's load and operating conditions.
6. What is power excursion support?
Power excursion support describes the PSU's ability to handle brief increases in power demand. MSI specifies up to 2200W for 100 microseconds, or 220% of rated output, for this model.
7. What are the dimensions of the MSI MAG A1000GLS?
The PSU measures 150 × 150 × 86mm. Check your cabinet's PSU clearance and cable-routing space before installation.
8. What warranty does this PSU include?
MSI lists a seven-year warranty for the MAG A1000GLS PCIE5. Warranty coverage is subject to the applicable MSI terms and regional conditions.
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