The MONTECH CENTURY II 850 is a fully modular 850W ATX power supply with ATX 3.1 and PCIe 5.1 support, suited to gaming PC builders who want a 12V-2x6 cable for compatible modern graphics cards.
Recommended For
- Builders putting together a modern gaming PC with a mid-range to upper-mid-range graphics card who want a native 12V-2x6 cable for compatible newer GPUs.
- Value-conscious PC builders who want a fully modular 850W ATX 3.1 power supply, Cybenetics Platinum efficiency certification, and a 10-year warranty without choosing a higher-priced premium model.
- Desktop users who prefer low fan noise during lighter workloads: testing found the fan can remain stopped at low loads and quiet in a typical room-temperature setup.
- PC builders upgrading from an older power supply who want a current-generation GPU cable and fully modular cabling for a new build or refresh.
Real-World Use Scenarios
- When building a gaming PC with a graphics card that uses a 12V-2x6 power input, the included native cable provides a direct connection without relying on a separate adapter; check the GPU maker’s recommended PSU wattage and the full system’s power needs before choosing 850W.
- During everyday desktop use or lighter workloads, Smart Zero Fan mode can keep the PSU fan stopped at low loads, reducing one source of noise; other PC fans may still be audible.
- When assembling or upgrading a PC, the fully modular cables let builders connect only the leads their components need, helping reduce unused cable clutter in the case.
- For a gaming or creator PC whose components fit within an 850W power budget, this unit provides one PSU for the CPU, graphics card, and other system parts; verify the total load and connector requirements for the exact build.
- When replacing a PSU in a compact ATX build, its 150 mm length may suit cases with limited PSU space, but builders should confirm the case’s clearance and cable-bending room before installation.
Spec Summary
| Attribute | Value |
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| Best For | Desktop builds needing an 850 W ATX power supply |
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| Power Output | 850 W |
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| Form Factor And Fit | ATX form factor with a maximum PSU length of 150 mm |
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| Modular Design And Connectors | Fully modular, with a 20+4-pin main connector and 6+2-pin PCIe connectors; 20 PSU connectors listed |
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| Cooling | Air-cooled by one 135 mm fan |
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| Efficiency | 80 PLUS Gold certified |
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| AC Input | 100–240 V AC, 50–60 Hz, 15–10 A |
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| Appearance | Silver |
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| Model Identifiers | Montech Century II 850; model number 17-959-008 |
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