MONTECH Century II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybenetics Platinum - Fully Modular - ATX 3.1 & PCIe 5.1 Ready with 12V-2x6 Cable - 10 Years Warranty
Want the best price and purchase timing?
Our AI advisor analyzes real-time pricing across all channels to find you the best deal.
AI Verdict
This 850W, 80 Plus Gold & Cybenetics Platinum, fully modular ATX 3.1 & PCIe 5.1 power supply with a 12V-2x6 cable is for gamers building with current-gen GPUs.
This 850W power supply is a strong fit for modern gaming systems due to its ATX 3.1 and PCIe 5.1 readiness, including a native 12V-2x6 cable. Its dual 80 Plus Gold and Cybenetics Platinum certifications ensure high efficiency, making it suitable for demanding components.
If you're pushing a top-tier GPU and CPU, consider a 1000W or 1200W model to ensure ample headroom for future upgrades and transient power spikes.
Regret Score™
Very Low RiskLower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity
Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- Native 12V-2x6 cable supports NVIDIA RTX 40 and upcoming 50 series GPUs, ensuring compatibility with ATX 3.1 and PCIe 5.1 standards.
- Achieves both 80 Plus Gold and Cybenetics Platinum efficiency certifications, indicating high power conversion efficiency.
- Features a fully modular design, allowing for cleaner builds and easier cable management by only connecting necessary cables.
- Includes a 135mm FDB fan with a Smart Zero Fan mode, keeping the fan off under light loads for silent operation.
- Built with 100% Japanese capacitors, contributing to its stated reliability and backed by a 10-year warranty.
- The 12V-2x6 cable is noted by users for its flexibility, making bends easier and reducing stress on connectors.
Cons
- The fan can become audibly loud, reaching 25-30 dBA, when the Smart Zero Fan mode disengages and the PSU operates above 200-250W.
- Some users found the 24-pin motherboard connector's pinout confusing, requiring extra effort to connect.
- The 4.63 lb weight might be a consideration for compact PC builds where every ounce matters.
- Its simple black and silver aesthetic might not appeal to users seeking RGB lighting or more visually striking components.
Dimension Scores
The 80 Plus Gold and Cybenetics Platinum certifications, combined with 850W output, provide high efficiency and ample power for high-end gaming systems.
While the Smart Zero Fan mode offers silent operation at low loads, the fan can become noticeably loud (25-30 dBA) when power draw exceeds 200-250W.
The use of 100% Japanese capacitors and a 10-year warranty point to a focus on long-term reliability and component quality.
Its fully modular design and a flexible 12V-2x6 cable simplify cable routing and contribute to a cleaner build.
Best For
- Gaming PC builds utilizing high-power NVIDIA RTX 40 series or future 50 series graphics cards.
- Users prioritizing power efficiency with both 80 Plus Gold and Cybenetics Platinum ratings.
- Builders who value a fully modular design for a clean internal aesthetic and easier assembly.
- Systems where silent operation at low power draw is desired, thanks to the zero RPM fan mode.
Not Recommended For
- Users who require near-silent operation under all load conditions, as the fan can be loud above 250W.
- Ultra-compact ITX builds where the 4.63 lb weight and physical dimensions could pose challenges.
Watch Out For
- The fan noise ramps up significantly to 25-30 dBA once the power draw exceeds 200-250W, which can be distracting for noise-sensitive users.
- One user reported a confusing 24-pin motherboard connector pinout, making initial installation more difficult than expected.
- The power supply's 4.63 lb weight is heavier than some competitors, which could be a minor issue for very lightweight or portable builds.
Full Specifications
| ASIN | B0F3XW1J16 |
| Brand | Montech |
| Color | Silver |
| Series | Century ll 850W |
| Wattage | 850 watts |
| Model Name | Century ll 850W |
| Form Factor | ATX |
| Item Weight | 4.63 pounds |
| Manufacturer | Montech |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 1500 |
| Item model number | 17-959-008 |
| Compatible Devices | Gaming Console |
| Product Dimensions | 10 x 10 x 10 inches |
| Item Dimensions LxWxH | 10 x 10 x 10 inches |
| Item dimensions L x W x H | 10 x 10 x 10 inches |
What Buyers Say
Many users praise the MONTECH Century II 850W for its future-proofing with ATX 3.1 and PCIe 5.1 support, especially the native 12V-2x6 cable which is noted for its flexibility. However, a recurring complaint is the fan noise; while silent at low loads, it can become quite audible (25-30 dBA) once the power draw goes above 200-250W, leading some to return the unit. The 10-year warranty and 100% Japanese capacitors are frequently highlighted as reasons for confidence in its longevity.
“Dude, this PSU is legit for my new 4070 Ti Super, the 12V-2x6 cable was actually easy to bend which was a relief. Only thing is, when I'm really gaming, the fan kicks in and it's not exactly quiet, but hey, 10 years warranty, so I'm not stressing.”
Common Praise
- Native 12V-2x6 cable is flexible and easy to route, reducing strain on the connector.
- Fully modular design makes cable management straightforward and keeps the PC interior tidy.
- Silent operation at low power draw due to the Smart Zero Fan mode.
- 10-year warranty provides long-term peace of mind.
- Compatibility with ATX 3.1 and PCIe 5.1 standards future-proofs the system.
Common Complaints
- Fan noise is significantly noticeable, reaching 25-30 dBA, when the PSU is under moderate to high load (above 200-250W).
- The 24-pin motherboard connector had a confusing pinout for some users, making it difficult to plug in.
- Aesthetics are considered too plain by some, lacking RGB or more distinctive design elements.
- The 4.63 lb weight is heavier than some alternatives, potentially impacting very small form factor builds.
Ownership Tips
- The fan's zero RPM mode works as advertised, keeping the system quiet during light tasks like browsing or video playback.
- The 12V-2x6 cable's flexibility is a real benefit during installation, preventing awkward bends and potential connector damage.
- The noise level under load is noticeable enough that it might bother users with open-case designs or those who prioritize absolute silence.
- The fully modular cables are a time-saver, preventing unnecessary cable clutter in the case.
Frequently Asked Questions
Is this power supply compatible with the latest graphics cards?
Yes, it is ATX 3.1 and PCIe 5.1 ready and includes a native 12V-2x6 cable, making it compatible with current and next-generation NVIDIA RTX GPUs.
How quiet is the MONTECH Century II 850W?
It features a Smart Zero Fan mode, meaning the fan remains off for silent operation under low power loads. However, once the load exceeds 200-250W, the fan activates and can reach 25-30 dBA.
What kind of warranty does this power supply come with?
The MONTECH Century II 850W is backed by a 10-year warranty, indicating the manufacturer's confidence in its durability and component quality.
Are the cables fully modular?
Yes, this power supply is fully modular, allowing you to connect only the cables your system needs, which helps with cable management and airflow.
What are its efficiency ratings?
It holds both 80 Plus Gold and Cybenetics Platinum certifications, signifying high energy efficiency across various load levels.
Buying Guide
When picking a power supply, you're looking for stable power delivery, efficiency, and the right connectors for your components. Wattage needs to match your CPU and GPU, with some headroom. Efficiency ratings like 80 Plus Gold tell you how much power is wasted as heat, impacting your electricity bill and case temperatures. Modularity affects how clean your build looks and how easy it is to manage cables.
Wattage (850W)
This is the maximum power your PSU can deliver. Think of it like the engine size in a car; an 850W PSU is like a powerful engine, capable of running high-performance components like a gaming GPU and CPU without struggling.
80 Plus Gold & Cybenetics Platinum
These are efficiency ratings. An 80 Plus Gold PSU is like a fuel-efficient car, converting at least 87% of the AC power from your wall into usable DC power for your PC, reducing wasted energy and heat. Cybenetics Platinum is an even stricter, more comprehensive efficiency standard.
ATX 3.1 & PCIe 5.1 Ready with 12V-2x6 Cable
This means the PSU is designed for the newest hardware. ATX 3.1 is the latest power supply standard, and PCIe 5.1 with a 12V-2x6 cable is crucial for modern, power-hungry graphics cards, ensuring they get stable power without needing adapters.
Fully Modular
This refers to the cables. A fully modular PSU lets you detach every cable, so you only plug in what you need. It's like having custom-fit cables for your car's engine bay, making it much tidier and improving airflow compared to having extra, unused cables cluttering things up.
Alternatives
If fan noise under load is a deal-breaker, look for power supplies with lower dBA ratings at higher wattages or those specifically marketed for silent operation. If you need a more compact unit, check for PSUs with smaller physical dimensions and lighter weights.
You Might Also Like
Micro ATX PC Case | Mini Tower Computer case | Pre-Installed 120mm*1 RGB Fan | ITX Desktop Chassis for MATX/ITX | 240 RAD | 280mm GPU | 160mm CPU Cooler Height - White S6
$0-$49This MAQUY S6 is a budget Micro ATX case with a pre-installed 120mm RGB fan, supporting 280mm GPUs and 240mm top radiators for entry-level builds.
Micro ATX Case, Mini PC ITX Desktop Computer Case MATX Case Support ATX PSU/250mm GPU/135mm CPU Cooler/1x 3.5’’HDD or 2X 2.5’’SSD/USB 3.0 Port
$0-$49This is a compact 38.5x19.5x32.5cm Micro ATX case supporting 250mm GPUs and 135mm CPU coolers, designed for budget workstation builds.
Small PC Case, ITX Mini Computer Case with 360 Degree Ventilation, 10.5L Compact Design for ITX Motherboard, SFX Power Supply, 4 x 2.5 Inch SSDs
$50-$99This 10.5L acrylic ITX case supports SFX/SFX-L PSUs, ITX motherboards, and GPUs up to 210mm, designed for compact builds.
Micro ATX PC Case | Mini Tower Computer case Support Vertical GPU Mount | Pre-Installed 120mm*1 RGB Fan | ITX Desktop Chassis for MATX/ITX | 240 RAD | 320mm GPU | 165mm CPU Cooler Height-Black
$0-$49A budget Micro ATX case with a mesh front, tempered glass, and support for 320mm GPUs and 240mm AIOs, but only one pre-installed 120mm RGB fan.