MSI MAG A850GL PCIE5 850W Power Supply
The MSI MAG A850GL PCIE5 is a premium 850W fully modular power supply engineered for high-performance gaming PCs and AI workstations. Built to ATX 3.1 specifications with native PCIe 5.1 support, this 80 PLUS Gold certified unit delivers stable, efficient power to next-generation NVIDIA GeForce RTX 40 and RTX 50 series graphics cards. Whether you're building a cutting-edge gaming rig or a professional AI PC, the MAG A850GL PCIE5 provides the reliable power infrastructure your system demands.
Key Features
- 850W capacity with 80 PLUS Gold efficiency (up to 90%)
- Native dual-color 16-pin PCIe 5.1 (12V-2x6) connector
- Up to 600W dedicated power delivery to RTX 40/50 series GPUs
- Supports 2x total power excursion and 3x GPU power excursion
- Fully modular cable design for flexible system builds
- Active PFC (Power Factor Correction) for stable voltage regulation
- Compact form factor optimized for modern PC chassis
- ATX 3.1 certified for future-ready compatibility
Technical Specifications
| Specification |
Details |
| Manufacturer |
MSI |
| Model |
MAG A850GL PCIE5 |
| Part Number |
MAGA850GLSPCIE5 |
| Power Output |
850W |
| Efficiency Rating |
80 PLUS Gold |
| Efficiency Level |
Up to 90% |
| Form Factor |
ATX 3.1 |
| PCIe Connector |
Native PCIe 5.1 (12V-2x6) |
| GPU Power Delivery |
Up to 600W |
| Cable Type |
Fully Modular |
| Power Factor Correction |
Active PFC |
| Power Excursion Support |
2x Total / 3x GPU |
| Target Use |
Gaming, AI PCs, High-End Workstations |
Frequently Asked Questions
Is the MSI MAG A850GL PCIE5 suitable for RTX 4090 and RTX 5090 graphics cards?
Yes. The MAG A850GL PCIE5 features a native PCIe 5.1 connector capable of delivering up to 600W directly to your GPU, making it ideal for NVIDIA GeForce RTX 40 and RTX 50 series cards including the RTX 4090 and RTX 5090.
What does 80 PLUS Gold certification mean for power efficiency?
80 PLUS Gold means this power supply maintains at least 90% efficiency at 50% load, reducing energy waste and heat generation. This translates to lower electricity bills and cooler system operation compared to lower-rated units.
Can I use the MSI MAG A850GL PCIE5 with older graphics cards?
Absolutely. While optimized for next-generation GPUs, the fully modular design and 850W capacity make this power supply compatible with legacy graphics cards and systems. The modular cables allow you to connect only what you need.
What is ATX 3.1 and why does it matter?
ATX 3.1 is the latest power supply standard that introduces enhanced power delivery capabilities, including native PCIe 5.1 support and improved power excursion handling. This certification ensures your power supply is future-ready for emerging high-performance components.
