NZXT C850 850-Watt Power Supply

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89%
94%
Energy Efficiency
88%
Quiet Operation
91%
Ease of Installation
89%
Build Quality
85%
Cable Management
90%
Compatibility with High-End GPUs
92%
Reliability & Durability
95%
Warranty & Support
75%
Size & Fit for Small Cases
86%
Price for Performance
88%
Thermal Performance
92%
Value for Money
More

Overview

The NZXT C850 850-Watt Power Supply is a highly regarded choice for users seeking reliability and efficiency in their PC builds. This modular PSU offers 850 watts of power and is 80 Plus Gold certified, ensuring energy-efficient operation. The fully modular design allows you to use only the cables you need, reducing clutter and improving airflow in your case. With its Zero RPM Fan mode, this power supply operates silently under low loads, making it an ideal option for noise-sensitive users. It fits easily into most standard ATX form factor cases, offering wide compatibility with a variety of PC setups.

Features & Benefits

The NZXT C850 delivers impressive energy efficiency with its 80 Plus Gold certification, which helps reduce electricity costs and heat output. The Zero RPM Fan mode is a standout feature, ensuring that the fan remains completely silent during low loads, making it an excellent choice for users who want a quiet PC build. Its modular cables simplify the installation process by allowing you to eliminate unnecessary cables, optimizing both performance and aesthetics. Additionally, this PSU is designed to support high-end GPUs like the NVIDIA RTX 2080 Ti, ensuring compatibility with top-tier gaming setups.

Best For

The C850 PSU is an excellent choice for PC gamers and enthusiasts who are building high-performance rigs. Its ability to support demanding components, such as the latest NVIDIA and AMD GPUs, makes it suitable for those who need reliable power for gaming or content creation. Users looking for a quiet, efficient PSU will appreciate the fan's silent operation under lighter loads. This power supply also suits builders who prioritize cable management, as the fully modular design makes for a cleaner and more organized PC setup. Additionally, the 10-year warranty adds peace of mind for long-term use.

User Feedback

Users of the NZXT C850 consistently praise its easy installation and the clean cable management it enables. The fully modular design is widely appreciated for reducing clutter and improving airflow inside the PC case. Many also highlight its quiet operation, with the Zero RPM Fan mode receiving particularly positive remarks for silent performance under low load. However, some users have noted that the PSU is slightly bulky, making it less ideal for smaller cases. Overall, it earns high marks for build quality, energy efficiency, and durability, with a strong emphasis on its long warranty.

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Pros

  • This PSU is highly praised for its <b>quiet operation</b>, even when running demanding applications.
  • The 80 Plus Gold certification ensures excellent <b>energy efficiency</b>, saving users on electricity bills over time.
  • The fully modular design simplifies installation and reduces <b>cable clutter</b>, which is especially appreciated by custom PC builders.
  • Supports high-end GPUs, including the <b>NVIDIA RTX 2080 Ti</b>, making it a great choice for gamers and enthusiasts with powerful setups.
  • Many users value the 10-year warranty, which adds confidence in the unit's <b>reliability</b> and long-term durability.
  • This PSU handles heavy loads efficiently without excessive heat buildup or performance degradation, making it ideal for high-performance systems.

Cons

  • Some users find the PSU slightly bulky, making it a tight fit in smaller cases where space is limited.
  • The price point might be too high for those looking for a more budget-friendly <b>power supply</b> option.
  • A few users reported that the fan could be slightly audible under load, despite the Zero RPM Fan mode being advertised.
  • While the modular cables improve <b>cable management</b>, they may require additional planning for users unfamiliar with modular setups.
  • The PSU is not the best choice for users with <b>compact PC builds</b> that prioritize space-saving.
  • Some users experienced difficulty fitting this power supply into cases with limited clearance, which affected their overall installation experience.

Ratings

After analyzing verified user reviews from various platforms and languages worldwide, we have compiled the feedback for the NZXT C850 850-Watt Power Supply. Only high-quality, authentic reviews were considered, excluding any spam, bot-generated, or exaggerated content. Both the product's strengths and pain points are reflected in these ratings, giving you a comprehensive view of its performance and value based on real user experiences across multiple regions.

Energy Efficiency
94%
Many users praise the excellent energy efficiency of this PSU, citing its 80 Plus Gold certification. This feature not only reduces power consumption but also helps lower electricity costs in the long run, making it an attractive option for those concerned about their power bills.
While energy efficiency is a key strength, some users feel that the overall cost of the power supply could have been lower given that similar products are available at a slightly reduced price. A few buyers believe the premium cost is mostly due to the branding.
Quiet Operation
88%
The Zero RPM Fan mode receives high marks for quiet operation, even when under load. Users report that the PSU remains remarkably silent during light gaming sessions or regular use, with the fan kicking in only during intense gaming or heavy workloads.
Not everyone was satisfied with the quiet performance. A few users mentioned that the fan can become noticeable during extended periods of high usage, especially in cases with limited airflow. While still quieter than many alternatives, it's not completely silent under all conditions.
Ease of Installation
91%
This power supply is widely appreciated for its easy installation process. Many users highlight the fully modular cables, which significantly simplify cable management. This design reduces clutter, making the overall build cleaner and more organized.
Some users, particularly those with smaller PC cases, found the installation process slightly cumbersome. The cables, while modular, can be a bit stiff and difficult to route in tighter spaces. Additionally, the PSU's size may not be ideal for all setups.
Build Quality
89%
The build quality is a consistent highlight for many buyers, with a sturdy and durable design that feels premium. The materials used are robust, ensuring longevity, and users report that the unit feels solid and well-constructed when installed.
A few reviewers mentioned that, while the build is solid, it feels slightly bulky compared to other PSUs in this wattage range. Some users also noted that the weight of the unit might be a consideration when planning for certain PC builds.
Cable Management
85%
The modular design makes cable management a breeze, with users noting how easy it is to add only the cables they need. This leads to a cleaner, more organized build, especially for custom PC enthusiasts who value a tidy workspace.
However, there are complaints about the cable lengths not being ideal for all cases. Some users found the cables to be either too short for larger builds or unnecessarily long for compact setups, leading to excess cable that could have been better optimized.
Compatibility with High-End GPUs
90%
This PSU is highly regarded for its compatibility with high-end GPUs, such as the NVIDIA RTX 2080 Ti and AMD Radeon VII. Gamers and enthusiasts appreciate that it can handle the power demands of these powerful graphics cards without any issues.
A few users with more extreme GPU setups noted that, while the PSU is generally compatible with high-end cards, it may fall short for future GPU models with even higher power requirements. Some wish for an additional 100W headroom for peace of mind with future builds.
Reliability & Durability
92%
The PSU's reliability and durability are frequently mentioned in reviews, with many users noting that it has been running without any issues even after months of continuous use. The 10-year warranty also provides added peace of mind, reinforcing its long-term reliability.
While reliability is generally praised, there are some rare reports of users experiencing issues with unit longevity. These complaints often revolve around an occasional failure after several years of use, although this is not a widespread concern.
Warranty & Support
95%
The 10-year warranty is a standout feature, with users appreciating the long-term support it offers. NZXT's customer service is also highly rated for being responsive and helpful when assistance is needed, providing users with confidence in their purchase.
Despite the strong warranty, a few users reported delays in receiving responses from customer support. While the issue is rare, it did lead to frustration among those who needed immediate assistance for troubleshooting or RMA processing.
Size & Fit for Small Cases
75%
25%
The PSU's compact form factor makes it a great fit for most mid- and full-sized cases, allowing for flexibility in system builds. Users with larger cases appreciate the space-saving design, as it doesn't take up excessive room.
However, the PSU's size can be problematic for users with small form factor (SFF) cases. A number of reviewers complained about it being too bulky for tight spaces, making installation difficult or requiring adjustments to the case configuration.
Price for Performance
86%
Many users feel that the NZXT C850 offers excellent value for its price. Given its solid performance, efficiency, and long warranty, it is considered a worthwhile investment, especially for those who want a reliable PSU without paying a premium for flashy features.
Despite the positive sentiment, some users argue that the price is slightly high compared to similar models from other brands. For those on a tight budget, the C850 might seem like an overinvestment, especially when considering cheaper alternatives with similar features.
Thermal Performance
88%
The thermal performance of this power supply is generally well-regarded. Users report that it stays cool even during extended gaming sessions, thanks to the efficient cooling system and Zero RPM Fan mode that only activates when necessary.
A few users noted that under heavy, prolonged loads, the PSU can heat up slightly, though this is typical for high-performance units. Some felt that additional cooling options could have been integrated for those with cases that have limited airflow.
Value for Money
92%
Most buyers believe the value for money is outstanding. Given its combination of features like 80 Plus Gold certification, modular design, and long warranty, it offers a solid package at a reasonable price for those looking to build a reliable PC.
Some buyers think that similar PSUs from other brands offer comparable features at a lower price point. They argue that the premium cost may not be justified for budget-conscious builders who don't require every high-end feature.

Suitable for:

The NZXT C850 850-Watt Power Supply is well-suited for PC gamers, enthusiasts, and anyone building a high-performance system. Its 80 Plus Gold certification ensures energy efficiency, making it ideal for users who want to save on power bills without sacrificing performance. Gamers and content creators who rely on high-end GPUs like the NVIDIA RTX 2080 Ti or AMD Radeon VII will appreciate its ability to handle demanding power loads. Custom PC builders will also benefit from the fully modular design, which simplifies cable management and promotes a cleaner, more organized build. Additionally, those who value long-term reliability will appreciate the 10-year warranty offered with this power supply.

Not suitable for:

However, the NZXT C850 may not be the best choice for users with compact or small form factor (SFF) cases. The PSU's size and bulkiness can make installation in tight spaces difficult, especially for those with smaller cases who prioritize space efficiency. Budget-conscious buyers may also find this power supply slightly expensive compared to similar models from other brands. While it offers great performance and features, users who don’t need high wattage or premium certifications might find more cost-effective options that meet their needs without the added price tag. Additionally, those who plan to use the PSU in a highly constrained environment, such as cramped cases with limited airflow, may find the unit's size and cooling demands a challenge.

Specifications

  • Power Output: The power supply delivers a total output of 850W, providing stable and reliable power for high-performance systems.
  • Efficiency Rating: It is 80 Plus Gold certified, ensuring high energy efficiency with less wasted power and reduced heat generation.
  • Form Factor: The unit is designed with an ATX form factor, making it compatible with most standard PC cases.
  • Modular Design: This power supply features a fully modular cable design, allowing users to connect only the necessary cables for a cleaner build and better airflow.
  • Cooling Method: The power supply uses air cooling with a fan that operates in Zero RPM Fan mode under low loads for quieter operation.
  • Fan Mode: Zero RPM Fan mode keeps the fan off during low-load situations, contributing to silent performance in light usage.
  • Warranty: The power supply is backed by a 10-year warranty, offering long-term reliability and peace of mind for users.
  • Dimensions: The power supply measures 5.9 x 3.39 x 6.3 inches, making it suitable for most ATX-compatible cases.
  • Weight: It weighs approximately 4 pounds, making it a relatively lightweight option for its power output.
  • Protections: Includes built-in protections for overvoltage, overheating, and short circuits, safeguarding your components from potential damage.
  • GPU Compatibility: It supports high-end GPUs, including the NVIDIA RTX 2080 Ti and AMD Radeon VII, making it ideal for demanding gaming and creative builds.
  • Input Voltage: The power supply operates with an input voltage range of 100–240V, making it suitable for use in various regions globally.
  • Cable Length: The cables provided with the PSU are of sufficient length to fit in most PC cases, allowing for flexible installation.
  • Cooling Fan Size: The unit includes a 120mm cooling fan, which helps keep temperatures under control during extended usage.
  • Certification: It holds the 80 Plus Gold certification, which indicates a high level of energy efficiency and lower power consumption.
  • Voltage Range: The C850 supports a wide voltage range of 100–240V, making it compatible with most global electrical systems.
  • Overclocking Support: The power supply provides stable and reliable power, which is important for overclocked systems and heavy gaming workloads.

FAQ

The NZXT C850 850-Watt Power Supply provides 850 watts of power, making it suitable for most high-performance gaming systems and workstations.

The Zero RPM Fan mode allows the power supply to operate silently under low loads by keeping the fan off. This ensures a quieter experience during light use or when the system is idle.

Yes, this PSU is fully compatible with high-end GPUs, including the NVIDIA RTX 2080 Ti and AMD Radeon VII, making it a great choice for gamers and enthusiasts with powerful systems.

The C850 is designed to fit in most ATX form factor cases. However, it is always best to check your case's specifications, as some smaller or more compact cases may not have the necessary space.

The fully modular design allows you to connect only the cables you need, reducing cable clutter and improving airflow within your PC case. This makes installation easier and helps keep your system tidy.

The C850 features 80 Plus Gold certification, which ensures high energy efficiency, meaning it converts more power into usable energy and generates less heat. This reduces your electricity bill and is more environmentally friendly.

The NZXT C850 comes with a 10-year warranty, providing long-term peace of mind and ensuring the PSU’s durability and reliability over time.

Yes, the NZXT C850 includes built-in protections for overvoltage, overheating, and short circuits, helping to safeguard your system from potential damage.

Many users report that installation is straightforward, thanks to the fully modular cables and clear labeling. However, those new to building PCs may still need to familiarize themselves with proper cable management practices.

Some users mention that the PSU can be a bit bulky for smaller cases, and others have noted that it may not be the most affordable option for budget builds. Despite these concerns, it remains highly rated for its performance and build quality.