MSI
MSI MPG A850GF 850W ATX power supply
A fully modular 850W ATX power supply with 80 PLUS Gold efficiency, a 140mm FDB fan rated to Cybenetics Standard ++, six PCIe 6+2-pin connectors and Japanese 105°C capacitors
- TypeATX
- Maximum Power850 W
- Fans1 x 140mm FDB Bearing Fan
- PFCActive
- Main Connector20+4Pin
- +12V Rails4
- Full modular cabling simplifies builds and improves airflow
- 80 PLUS Gold certification delivers up to 90% efficiency
- 140 mm FDB fan meets Cybenetics Standard++ for quiet operation
- Six PCIe 6+2-pin connectors support multi-GPU configurations
- Comprehensive protection suite includes OCP, OVP, OPP, OTP, SCP, UVP
850W ATX power supply for gaming builds
The MSI MPG A850GF is a fully modular ATX unit rated at 850 W. It carries 80 PLUS Gold certification and uses 100% Japanese 105°C electrolytic capacitors. A single 140 mm FDB fan provides cooling while meeting Cybenetics Standard++ noise levels. The 160 mm depth fits most mid-tower cases.
Suits single-GPU systems needing clean cable routing
Six PCIe 6+2-pin connectors and two CPU 4+4-pin cables support modern graphics cards and multi-core processors. Eight SATA and five peripheral plugs cover storage and accessories. Builders who require dual-GPU power or extreme overclocking headroom should consider higher-wattage models.
Holds steady output under continuous load
The LLC half-bridge topology with DC-DC modules delivers stable voltages across four +12 V rails rated at 25 A, 25 A, 40 A and 40 A. Minor rails supply 22 A each on +5 V and +3.3 V. Active PFC and a full suite of protections (OCP, OVP, OPP, OTP, SCP, UVP) maintain safe operation during extended gaming sessions.
Highlights
- Full modular cabling simplifies builds and improves airflow
- 80 PLUS Gold certification delivers up to 90% efficiency
- 140 mm FDB fan meets Cybenetics Standard++ for quiet operation
- Six PCIe 6+2-pin connectors support multi-GPU configurations
- Comprehensive protection suite includes OCP, OVP, OPP, OTP, SCP, UVP
Specifications
| Brand | MSI |
|---|---|
| Model | MPG A850GF |
| Type | ATX |
| Maximum Power | 850 W |
| Fans | 1 x 140mm FDB Bearing Fan |
| PFC | Active |
| Main Connector | 20+4Pin |
| +12V Rails | 4 |
| PCI-Express Connector | 6 x 6+2-Pin |
| SATA Power Connector | 8 |
| Max PSU Length | 160 mm |
| Modular | Full Modular |
| Efficiency | Up to 90% |
| Energy-Efficient | 80 PLUS GOLD Certified |
| PSU Noise Level | Cybenetics Standard ++ |
| Protection | OCP / OVP / OPP / OTP / SCP / UVP |
| Input Voltage | 100 - 240 V |
| Input Frequency Range | 47 - 63 Hz |
| Input Current | 10A @ 115V, 5A @ 230V |
| Output | +5V@22A, +3.3V@22A, +12VMBPH@25A, +12VCPU@25A, +12VVGA1@40A, +12VVGA2@40A, [email protected] , [email protected] |
| Connectors | 1 x ATX/MB 24 Pin 2 x CPU/EPS 4+4 Pin 6 x PCI-e 6+2 Pin 8 x SATA 5 x Peripheral |
| SLI | No |
| CrossFire | No |
| Features | Full Module Cable design Flat Cable equipment 80 Plus Gold Certified for High Efficiency 100% all Japanese 105oC capacitor Active PFC design 10-year warranty Supports latest Nvidia graphic card design Industrial level protection with OVP,OCP,OPP,OTP, SCP,UVP LLC Half Bridge Topology with DC-DC Module Design |
| Dimensions | 3.39" x 5.91" x 6.30" |
| Shipping weight | 2.86 kg |
| Package size | 291 × 208 × 132 mm |
Questions about this item
What motherboard power connector must my board provide for the 20+4Pin main cable?
Your motherboard needs a standard 24-pin ATX socket; the 20+4Pin cable splits to fit both 20-pin and 24-pin headers.
Can I keep my existing SATA drives with the eight SATA power connectors?
Yes, the unit supplies eight SATA power plugs, each delivering the rated +5 V and +3.3 V rails for legacy drives.
How do I verify the fan is running in its low-noise Cybenetics Standard ++ mode after install?
Listen for the 140 mm FDB bearing fan; at typical loads it spins quietly, and the Cybenetics Standard ++ rating confirms low acoustic output.
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