MSI MPG A850G PCIE5 850W 80 Plus Gold Modular PSU
MSI
MSI MPG A850G PCIE5 850W 80 Plus Gold Modular PSU
The MSI MPG A850G PCIE5 850W 80 Plus Gold Modular PSU is built for enthusiast PC builders who want their system ready for the most power-hungry current and future graphics cards. Its native 16-pin PCIe 5.1 connector delivers up to 600W to compatible GPUs, while full modularity keeps cable management clean and straightforward.
Why this product
Native PCIe 5.1 connector for future GPUs
A single native 16-pin connector pipes up to 600W directly to PCIe 5.1 graphics cards, including support for Nvidia GeForce RTX 50 Series, with no adapter required.
ATX 3.1 compliant with high power excursion
Compliance with Intel PSDG ATX 3.1 means it can handle up to 200% of rated power (1700W) for 100μs and 3× GPU power excursion, absorbing the transient spikes modern GPUs demand.
80 Plus Gold efficiency up to 90%
The 80 Plus Gold certification means less energy is wasted as heat under typical loads, keeping running costs and internal temperatures lower.
Fully modular with flat cables
Every cable detaches, and the flat cable design makes routing easier and airflow through the case less obstructed compared to sleeved or fixed-cable units.
Six-protection industrial-grade circuit design
OCP, OVP, OPP, OTP, SCP and UVP protection guard components against over-current, over-voltage, over-power, overheating, short-circuit and under-voltage events.
100% Japanese 105°C capacitors
All capacitors are rated to 105°C and sourced from Japanese manufacturers, supporting the 150,000-hour MTTF rating at 25°C.
- Rated power850W
- Efficiency80 Plus Gold (up to 90%)
- ModularFully modular
- PCIe 5.1 connector1× 16-pin (600W)
- Form factorATX
- Dimensions (D×W×H)150 × 150 × 86 mm
- MTTF150,000 hours at 25°C
- ProtectionOCP, OVP, OPP, OTP, SCP, UVP
- SKUMSI-7095
- EAN4711377030427
- Compatible with standard ATX cases and motherboards using the 24-pin ATX connector.
- Supports Nvidia GeForce RTX 50 Series graphics cards via the native 16-pin PCIe 5.1 connector.
- Works with dual-CPU or high-end single-CPU setups via two EPS 4+4-pin connectors.
- Accepts universal AC input from 100 V to 240 V at 50–60 Hz, suitable for use worldwide.
- Older graphics cards using 6+2-pin PCIe connectors are supported — six such connectors are included — but the full 600W native output is only available through the 16-pin PCIe 5.1 connector.
- At 150 × 150 × 86 mm this is a standard ATX PSU depth; verify your case's PSU bay length before ordering.
Best for
- High-end gaming builds that pair a power-hungry GPU with the native PCIe 5.1 connector and up to 600W GPU delivery.
- Builders upgrading to RTX 50 Series or other next-generation graphics cards who want a PSU that will not need replacing alongside the GPU.
- Cable-management-conscious builders who benefit from full modularity and flat cables to keep airflow clear.
- Workstations with dual EPS demands — two 4+4-pin EPS connectors and eight SATA ports cover CPU-intensive rigs with multiple storage devices.
- Long-term builds where the 150,000-hour MTTF and 105°C Japanese capacitors point to extended service life.
Trade-offs
- Budget or small-form-factor builds — at the ATX form factor and 850W rating, it is sized and priced above the needs of a compact or low-power system.
- Systems needing more than 850W continuous output — the rated ceiling is 850W and a higher-wattage unit would be required for very heavily loaded multi-GPU or server workloads.
- Builds where six or more PCIe 6+2-pin connections are not enough — the unit provides exactly six, which limits configurations requiring more simultaneous PCIe peripherals.
- Mini-ITX or SFX cases that require an SFX or SFX-L power supply — this is a full ATX unit at 150 × 150 × 86 mm.
The MSI MPG A850G PCIE5 850W Power Supply showcases unique styles and color schemes with laser-like lines to create a masterful art piece with individuality, fully expressing the charm of MPG.
It has an output port that is compliant with PCIe 5.1 and Intel PSDG (Power Supply Design Guide) ATX 3.1, also the power supply can hold up to 2x total power excursion and 3x GPU power excursion.
With native 16 PIN PCIe connector the power supply is ready for all high performing future graphics cards. It can freely pipe up to 600W of power to PCIe 5.1 graphics cards.
General
| Brand | MSI |
|---|---|
| Model | MPG A850G PCIE5 |
| Rated power | 850W |
| Form factor | ATX |
| Modular | Yes (fully modular) |
| Dimensions (D×W×H) | 150 × 150 × 86 mm |
Performance & efficiency
| Efficiency rating | 80 Plus Gold (up to 90%) |
|---|---|
| Input voltage | 100–240V |
| Input frequency | 50–60 Hz |
| PFC type | Active PFC |
| Topology | LLC Half Bridge with DC-DC module |
| Power excursion | 1700W (up to 200% for 100μs) |
| GPU power excursion | Up to 3× GPU rated power |
Connectors
| ATX 24-pin | 1 |
|---|---|
| EPS 4+4-pin | 2 |
| PCIe 5.1 16-pin | 1 (600W) |
| PCIe 6+2-pin | 6 |
| SATA 15-pin | 8 |
Cooling & reliability
| Fan size | 135 mm |
|---|---|
| Fan bearing | Fluid Dynamic Bearing |
| Fan speed | 500–1800 RPM (±15%) |
| Capacitors | 100% Japanese 105°C |
| Protection | OCP, OVP, OPP, OTP, SCP, UVP |
| MTTF | 150,000 hours at 25°C |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.