MSI MAG 1000W Power Supply - 80 PLUS Gold Fully Modular ATX 3.1 PSU

1000W Power Supply for High-Performance Gaming and Creator PCs

The MSI MPG A1000G PCIE5 is a 1000W power supply built for modern desktop PCs that need stable, efficient power. With 80 PLUS Gold certification (up to 90% efficiency), this 1000 watt power supply helps reduce heat, improve overall power delivery, and support demanding components like high-end CPUs and GPUs.

This ATX 3.1 power supply is designed to handle real-world power spikes and is a great fit for gaming PCs, content creation workstations, and performance upgrades where headroom matters.

PCIe 5.0 Ready Power Supply with 16-Pin 600W GPU Connector

If you are upgrading to a newer graphics card, the MPG A1000G PCIE5 includes a PCI-E 5.0 (16-pin) connector rated up to 600W. It supports Nvidia® GeForce RTX™ 40 and 50 Series graphics cards, helping you power modern GPUs without relying on bulky adapters.

This makes it a strong choice for a PCIe 5.0 power supply build where clean installation and future-ready compatibility are important.

Fully Modular 1000W PSU for Cleaner Builds and Easier Cable Routing

This fully modular power supply lets you connect only the cables you need, which helps reduce clutter and improve airflow in your case. Flat cables make routing simpler, especially in mid-tower cases where cable management can get tight.

Whether you are building from scratch or replacing an older unit, a fully modular 1000W PSU makes the install easier and keeps your system looking cleaner.

Quiet Cooling with a 135mm Fluid Dynamic Bearing Fan

The MPG A1000G PCIE5 uses a 135 mm fan with a Fluid Dynamic Bearing to help keep noise down while moving plenty of air. This design is built for smooth operation and long-term reliability, which is ideal for everyday users who want a powerful PC that does not sound like a server.

Stable, Reliable Power with Japanese 105°C Capacitors and Active PFC

This 1000W ATX power supply uses 100% all Japanese 105°C capacitors and an Active PFC design for stable output. It also features an LLC Half Bridge topology with a DC-DC module design, which helps maintain consistent voltage under changing loads.

It supports power excursion up to 2000W (up to 200% of the PSU’s rated power for 100 microseconds), which helps handle short burst power spikes that can happen with modern GPUs.

Built-In Protection Features for Peace of Mind

Industrial-level protection features help protect your PC hardware from electrical faults and abnormal conditions. Supported protections include OVP, OCP, OPP, OTP, SCP, and UVP.

MPG A1000G PCIE5 Technical Specifications

Model: MPG A1000G PCIE5
Part Number: MPGA1000GPCIE5
Efficiency Rating: 80 PLUS Gold (up to 90%)
Modular: Yes (fully modular)
Fan Size: 135 mm
Fan Bearing: Fluid Dynamic Bearing
Dimensions (DxWxH): 150 x 150 x 86 mm
PFC Type: Active PFC
Input Voltage Range: 100-240 VAC
Input Frequency Range: 50-60 Hz
AC Input: 100-240V~, 13A, 50-60Hz
Power Output: 1000W
Power Excursion: 2000W (up to 200% for 100μs)

DC Output Ratings

+12V: 83.5A (up to 1000W)
+5V: 22A
+3.3V: 22A
-12V: 0.3A (3.6W)
+5Vsb: