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Xigmatek Prime M 850W 80 Plus Gold ATX 3.1
The Xigmatek Prime M 850W is a high-performance ATX 3.1 power supply featuring 80 Plus Gold efficiency, full modular cabling, DC-to-DC converter design, and PCIe 5.1 native support. With its 140mm compact size, 120mm silent fan, and comprehensive protection features, it delivers reliable and efficient power for modern gaming and workstation builds.
🔌 ATX 3.1
📦 Full Modular
🔇 120mm Silent Fan
⚡ PCIe 5.1
80 PLUS
GOLD
ATX 3.1
PCIe 5.1
Full Modular
850W
Continuous Power
🔌
120mm Fan
Silent Cooling
XIGMATEK Prime M 850W
80 Plus Gold · ATX 3.1 · Full Modular · PCIe 5.1
80+
GOLD
Efficiency
ATX
3.1
Latest Standard
Full Modular
140mm Compact
PCIe
5.1
Native Support
Technical Specifications
Is the Xigmatek Prime M 850W Right For You?
✓ Best For
- ✔ Gaming PCs with high-end GPUs requiring stable 850W power
- ✔ Workstations with multi-GPU configurations
- ✔ Users who value cable management with full modular design
- ✔ Builders seeking ATX 3.1 compatibility for modern hardware
- ✔ Users who prioritize energy efficiency with 80 Plus Gold
✗ Not Ideal For
- ✗ Systems requiring more than 850W (e.g., dual RTX 4090)
- ✗ Users needing 100-120V AC input (220-240V only)
- ✗ Compact ITX builds (140mm may be too long)
- ✗ Users on a tight budget (premium Gold rated PSU)
Key Features of the Xigmatek Prime M 850W
80
+
GOLD
90% Efficiency
⭐ 80 Plus Gold Efficiency
Certified 80 Plus Gold efficiency delivers up to 90% power conversion at typical loads, reducing energy waste, lowering electricity costs, and generating less heat for cooler operation.
Full Modular
📦 Full Modular Design
Use only the cables you need for a clean and organized build. Full modular cabling improves airflow, reduces clutter, and makes installation and cable management effortless.
DC-to-DC Convertor
⚡ DC-to-DC Converter Design
Advanced DC-to-DC converter design ensures stable and efficient power delivery, maintaining tight voltage regulation and minimizing ripple for reliable system performance.
PCIe 5.1 Support
🔌 PCIe 5.1 Native Support
Native PCIe 5.1 support ensures compatibility with the latest graphics cards and high-power devices, delivering up to 600W through the 12VHPWR connector for next-gen GPUs.
Comprehensive Protection
🛡️ Complete Protection Suite
Comprehensive protection features including OVP, UVP, OPP, SCP, and OTP safeguard your components against electrical anomalies, ensuring long-term system stability and reliability.
Compatibility Matrix
| Platform | Supported | Notes |
|---|---|---|
| ATX 3.1 Motherboards | ✔ Full | Native ATX 3.1 compliance |
| PCIe 5.1 Graphics Cards | ✔ Full | 12VHPWR connector included |
| Multi-GPU Configurations | ✔ Full | Multiple PCIe cables included |
| ATX / Micro-ATX / ITX | ✔ Full | 140mm length fits most cases |
| 220-240V AC Input | ✔ Full | Active PFC for wide voltage range |
What’s In The Box
Common Questions About the Xigmatek Prime M 850W
What is the efficiency certification of the Xigmatek Prime M 850W?
80 Plus Gold. The Xigmatek Prime M 850W is 80 Plus Gold certified, delivering up to 90% efficiency at typical loads for reduced energy consumption and lower operating temperatures.
Is the Xigmatek Prime M 850W ATX 3.1 compliant?
Yes. The Prime M 850W fully supports ATX 3.1 standard with PCIe 5.1 native support, ensuring compatibility with modern motherboards and graphics cards including RTX 40 series.
What is included in the box with the Xigmatek Prime M 850W?
Complete kit. The package includes the PSU unit, full modular cables (24-pin ATX, CPU 4+4-pin, PCIe 6+2-pin, SATA, Molex), AC power cord, mounting screws, and user manual.
What protection features does the Xigmatek Prime M 850W include?
Complete protection. The power supply features comprehensive protection including OVP (Over Voltage Protection), UVP (Under Voltage Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), and OTP (Over Temperature Protection).
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