MSI MAG 850 Watt Power Supply - 80 PLUS Gold Fully Modular ATX PSU

850W 80 PLUS Gold Power Supply for Modern Gaming PCs

The MSI MAG A850GLS PCIE5 is a high-efficiency 850 watt power supply built for today’s performance desktops and gaming systems. With 80 PLUS Gold certification delivering up to 90% efficiency, this 850W ATX power supply helps reduce wasted energy, lower heat output, and improve overall system stability.

Designed to support the latest hardware, including Nvidia® GeForce RTX™ 50 series graphics cards, this fully modular power supply gives you clean cable management and reliable power for high-end GPUs and multi-drive setups.

Native 12V-2x6 Connector - Built for PCIe 5.1 Graphics Cards

This PCIe 5.1 power supply includes a native 12V-2x6 16-pin connector rated for up to 600W. That means no bulky adapters and no guesswork when powering next-generation graphics cards.

The included dual-color 12V-2x6 cable helps ensure proper installation and adds an extra layer of confidence when building or upgrading your system.

Fully Modular 850W Power Supply for Easy Cable Management

The MAG A850GLS PCIE5 is a fully modular power supply, allowing you to connect only the cables you need. This improves airflow inside your case and makes cable routing easier, especially in compact or mid-tower builds.

Embossed jacket cables are designed for better flexibility and smoother bending, making installation simpler for first-time builders and experienced DIY users alike.

Stable, Reliable Output with Industrial-Level Protection

This 850 watt desktop PC power supply uses Active PFC and a high-quality 105°C main capacitor to deliver stable power under demanding loads. It also supports power excursion up to 1870W, handling up to 220% of rated power for 100 microseconds - ideal for sudden GPU power spikes.

Comprehensive protection features include OCP, OTP, OPP, SCP, OVP, UVP, SIP, and NLO. These safeguards help protect your motherboard, graphics card, and storage devices from electrical faults.

Quiet 135 mm Cooling Fan with Fluid Dynamic Bearing

A large 135 mm cooling fan with a Fluid Dynamic Bearing helps optimize sound levels while maintaining efficient cooling. The design reduces friction and improves longevity, making this a quiet 850W PSU suitable for gaming PCs, workstations, and home builds.

Technical Specifications - MAG A850GLS PCIE5 (MAGA850GLPCIE5)

Efficiency Rating: 80 PLUS Gold (up to 90%)
Modular: Full Modular
Input Voltage Range: 100-240V~, 12A
Input Frequency: 47-63 Hz
Dimensions (DxWxH): 150 x 150 x 86 mm
Fan: 135 mm Fluid Dynamic Bearing
PFC Type: Active PFC
Total Power: 850W

DC Output:
+12V: 70.8A (849.6W)
+5V: 20A
+3.3V: 20A
-12V: 0.3A (3.6W)
+5Vsb: 3A (15W)

Connectors:
1 x ATX (24-pin)
1 x EPS (8-pin)
1 x EPS (4+4-pin)
1 x PCI-E 5.1 (16-pin, 600W)
4 x PCI-E (6+2-pin)
8 x SATA (15-pin)
3 x Peripheral (4-pin)
1 x FDD (4-pin)

A Reliable 850W ATX Power Supply for Upgrades and New Builds

If you are building a new gaming PC, upgrading to a PCIe 5.1 graphics card, or replacing an aging PSU, the MSI MAG A850GLS PCIE5 850W power supply delivers strong, stable, and efficient power in a compact ATX form factor.

With 80 PLUS Gold efficiency, a native 12V-2x6 connector, full modular design, and advanced protection features, this MSI 850W power supply is a dependable foundation for modern desktop systems.