SilverStone SX700-PT SFX 700W 80 PLUS Platinum Power Supply

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87%
92%
Performance
96%
Efficiency
89%
Noise Level
90%
Build Quality
85%
Ease of Installation
94%
Power Delivery Stability
91%
Compatibility with Small Builds
88%
Modularity & Cable Management
87%
Cooling Efficiency
72%
Value for Money
93%
Long-Term Durability
68%
Price vs Non-Platinum Models
More

Overview

The SilverStone SX700-PT SFX 700W 80 PLUS Platinum Power Supply is a compact yet powerful solution for small desktop builds. This high-efficiency PSU provides a stable 700W output with a single +12V rail, ensuring consistent power delivery for high-performance systems. Its 80 PLUS Platinum certification ensures it operates at peak efficiency, reducing energy consumption and heat. Additionally, the quiet 92mm FDB fan maintains minimal noise levels, making it ideal for users seeking both performance and a quiet computing experience. The small SFX form factor makes it a perfect fit for space-constrained PC cases.

Features & Benefits

This SilverStone power supply boasts a fully modular design, allowing for easy cable management and a cleaner build. The use of Japanese capacitors ensures enhanced reliability, providing longer-lasting performance for demanding systems. With 700W packed into a compact size (3.94 x 4.92 x 2.5 inches), it offers class-leading power density, ideal for small form-factor PCs. The 80 PLUS Platinum certification not only ensures low energy consumption but also minimizes heat generation, making this PSU an excellent choice for both performance and efficiency.

Best For

This 700W SFX PSU is ideal for gamers and PC enthusiasts building compact, high-performance systems. Its small size and modular design make it a great choice for users looking to maximize space and minimize cable clutter in tight cases. It is particularly suitable for those building mini PC builds or small form-factor desktops. Power users who prioritize energy efficiency and quiet operation will also benefit from its 80 PLUS Platinum certification and ultra-low noise levels.

User Feedback

Users have praised this Platinum certified PSU for its efficient power delivery and remarkably low noise levels, with many noting its easy installation in small form-factor cases. The compact design fits perfectly in tighter spaces, which is a major plus for users building mini PCs. However, some have mentioned that the price point is higher compared to non-Platinum rated models, which could be a concern for budget-conscious buyers. Overall, it is well-regarded for its reliability and quiet performance, though the cost may be a factor for some.

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Pros

  • This power supply is highly efficient, with 80 PLUS Platinum certification, reducing energy consumption and heat output.
  • The fully modular design makes cable management in small form-factor cases much easier and cleaner.
  • Users appreciate the low noise levels, with the 92mm FDB fan operating at just 18 dBA, even under load.
  • Its compact SFX form factor fits perfectly in smaller desktop builds without compromising power output.
  • Many users find the 700W output and single +12V rail ideal for stable power delivery in high-performance systems.
  • All Japanese capacitors are used, contributing to enhanced reliability and longevity over time.

Cons

  • The price is higher compared to non-Platinum rated power supplies, which may be a drawback for budget-conscious buyers.
  • Some users noted that installation can be challenging in ultra-compact cases due to the size and cable management requirements.
  • Not ideal for users with lower power needs or those building basic systems, as the 700W output may be excessive.
  • Though quiet, the fan can produce noticeable noise during extended heavy workloads, which could be bothersome in ultra-quiet setups.
  • It may not be the best choice for those who are looking for a budget-friendly PSU without the additional efficiency benefits.
  • A few users mentioned that despite its size, cable lengths could still be a bit restrictive in some cases.

Ratings

After analyzing verified user reviews from multiple platforms and languages, the SilverStone SX700-PT SFX 700W 80 PLUS Platinum Power Supply has received generally positive feedback from users worldwide. Both strengths and pain points are reflected in the scores, with users highlighting its performance and reliability, while also noting the relatively higher price compared to non-Platinum units. Spam, bot-generated, or incentivized reviews were filtered out to ensure only authentic feedback contributed to the results.

Performance
92%
Users appreciate the stable and efficient power output, especially during high-demand gaming or performance tasks. Many reviewers highlight the steady delivery of 700W on a single +12V rail, which ensures smooth operation for powerful systems. This makes it an ideal choice for demanding builds with heavy workloads.
Some users felt that while performance was excellent, the power supply might not be necessary for those with less demanding setups. Users on lower-end configurations have mentioned that they could get by with lower wattage models, making this a higher-end, potentially overkill option for such use cases.
Efficiency
96%
The 80 PLUS Platinum certification is a key highlight for those seeking an energy-efficient power supply. Buyers consistently report lower electricity bills thanks to reduced power consumption, especially with extended use. This makes it an excellent choice for users who prioritize long-term energy savings and environmental benefits.
Some users have noted that the cost of this Platinum-certified PSU is significantly higher than non-Platinum models. Although it offers superior efficiency, the price difference might not be justified for users who don't require the highest possible efficiency for their builds.
Noise Level
89%
Many users are impressed with how quiet the 92mm FDB fan operates, especially when under load. At just 18 dBA, the fan noise remains minimal, making it a top choice for users building PCs in noise-sensitive environments like home theaters or offices.
While the fan is quiet for most uses, a few users have pointed out that under heavy gaming or extreme performance loads, the PSU can become slightly noisier. This might be a concern for users who require complete silence during high-demand tasks.
Build Quality
90%
Buyers highlight the solid build quality, with premium Japanese capacitors contributing to a long-lasting and reliable performance. The compact design allows for efficient use of space in small cases, making it a strong contender for high-end mini-PCs and SFF builds.
A few users mentioned that while the build quality is solid, the small size can make installation a bit tricky in tighter cases. The cables might feel a bit rigid for those who are installing in cramped spaces or require flexibility in cable routing.
Ease of Installation
85%
Installation is generally reported as straightforward, with many users praising the fully modular design. The modular cables allow for a clean setup, reducing clutter and improving airflow in compact PC builds, which is especially beneficial for smaller form factors.
However, some users mentioned that the size of the PSU, while compact, can still pose a challenge in ultra-tight cases. Additionally, cable lengths may not always be ideal for specific small builds, requiring extra attention during installation to ensure proper fit and neatness.
Power Delivery Stability
94%
The single +12V rail provides stable power delivery without the risk of power imbalance, which is essential for high-performance components like GPUs. Users report that the PSU delivers reliable power during demanding gaming sessions and heavy multitasking, ensuring optimal performance.
A few users in non-technical reviews mentioned that they weren't sure how critical the single +12V rail was for their setups. Some felt that dual-rail designs offered more flexibility, though this PSU's stable delivery compensates for that with high reliability.
Compatibility with Small Builds
91%
This power supply is highly regarded for its ability to fit into small form-factor (SFF) cases. Users building compact gaming rigs or mini-PCs appreciate the SFX form factor, which maximizes space utilization while providing ample power for performance-focused systems.
The only downside some users have reported is that while it fits in most SFF cases, it can be tight in ultra-compact builds. Those using custom small cases with limited PSU clearance may encounter some installation challenges or have to compromise on cable routing.
Modularity & Cable Management
88%
The fully modular cable system receives praise for improving cable management in compact builds. Users appreciate the flexibility to only use the cables they need, which helps maintain a clean build and improves airflow, preventing overheating.
Some users expressed concerns that the cables can be a bit stiff, especially for those trying to route them in very confined spaces. This can sometimes make cable management more difficult, especially in tight small form-factor builds where flexibility is crucial.
Cooling Efficiency
87%
The air cooling method with a 92mm FDB fan ensures that the PSU stays cool even under load. The cooling system is efficient enough for high-performance systems, with most users reporting that temperatures remain manageable even during long gaming sessions.
While cooling performance is generally positive, a few users noted that the fan speed increases noticeably under heavy load, contributing to slightly higher noise levels. For users prioritizing absolute silence, this could be a drawback, especially in noise-sensitive environments.
Value for Money
72%
28%
While the price is on the higher end, many users feel that the investment is justified by the quality, efficiency, and reliability offered. The 80 PLUS Platinum certification and robust performance make it a solid long-term choice for serious gamers and PC enthusiasts.
The primary complaint among users is the high cost compared to non-Platinum-rated models. Some buyers believe that the price premium for the Platinum certification isn't worth it unless you're building a system that demands high efficiency and low noise.
Long-Term Durability
93%
Users consistently report that this PSU lasts for years without any issues, thanks to the high-quality Japanese capacitors. The product is known for maintaining stable power delivery over time, which makes it a reliable long-term investment for power users and gamers.
A small number of users mentioned that while the PSU is durable, the high price might not justify long-term use in less demanding systems. For casual users or those with lower power needs, this might be an overbuilt option, leading to unnecessary costs.
Price vs Non-Platinum Models
68%
32%
Several users appreciate the extra investment for the higher efficiency and build quality of the Platinum-rated PSU. The longer-term energy savings and reliable power delivery are seen as justifying the extra cost over non-Platinum-rated alternatives.
A significant portion of users have pointed out that the price gap between this Platinum-rated model and non-Platinum units is substantial. Many users believe that for typical desktop builds, a non-Platinum PSU could offer similar performance without the higher upfront cost.

Suitable for:

The SilverStone SX700-PT SFX 700W 80 PLUS Platinum Power Supply is ideal for gamers and PC enthusiasts building compact, high-performance systems. Its high efficiency, thanks to the 80 PLUS Platinum certification, makes it a great choice for users who want to reduce energy consumption and keep power bills low. The fully modular design is perfect for those looking to maintain a clean, organized build, especially in small form-factor (SFF) cases where space is limited. Its quiet 92mm FDB fan ensures minimal noise during operation, making it a solid choice for users who prioritize both power and a quiet computing experience. Power users who build systems for gaming, productivity, or media work will find this power supply particularly beneficial for maintaining stable power delivery, even under heavy loads.

Not suitable for:

While the SilverStone SX700-PT offers excellent performance, it may not be the best option for users with lower power needs or tighter budgets. The relatively high price, especially compared to non-Platinum-rated models, might deter those looking for a more budget-friendly solution. Users with less demanding setups or who are not building high-performance systems might find it overbuilt and unnecessary. Additionally, those looking to build in extremely compact cases could face installation challenges due to the PSU’s compact size, with some users noting that cable management in ultra-tight spaces can be tricky. If noise sensitivity is a major concern, the slight increase in fan noise during intense workloads might also be a drawback for some users.

Specifications

  • Form Factor: SFX form factor, designed for compact desktop builds.
  • Wattage: 700W power output, suitable for high-performance systems.
  • Efficiency: 80 PLUS Platinum certification for high energy efficiency.
  • Fan Size: 92mm Fluid Dynamic Bearing (FDB) fan for quiet operation.
  • Noise Level: Operates at a minimum of 18 dBA, ensuring minimal noise.
  • Cooling Method: Air-based cooling with an efficient 92mm fan.
  • Rail Design: Single +12V rail for stable and reliable power delivery.
  • Capacitors: Uses all Japanese capacitors for enhanced durability and reliability.
  • Modular Design: Fully modular cable system for improved cable management.
  • Dimensions: Compact size of 3.94 x 4.92 x 2.5 inches to fit in small form-factor cases.
  • Input Voltage: Supports an input voltage range of 100-240V AC.
  • Output Voltage: 12V output voltage to power most high-performance components.
  • Power Density: Class-leading power density for 700W in a compact form.
  • Certification: 80 PLUS Platinum certification ensures reduced energy consumption and heat.
  • Warranty: Includes a standard 5-year warranty for peace of mind.
  • Compatibility: Compatible with most small form-factor cases requiring SFX power supplies.
  • Cooling Features: The 92mm fan operates quietly and efficiently at load, reducing system noise.
  • Reliability: Built with high-quality components for long-term reliability and performance.

FAQ

This power supply’s compact SFX form factor makes it a perfect fit for small desktop cases while providing 700W of power. Its high efficiency, certified by 80 PLUS Platinum, reduces energy consumption and heat output, making it both reliable and eco-friendly in high-performance setups.

Many users report that this PSU is relatively easy to install in small form-factor cases, thanks to its fully modular design. The modular cables help with better cable management, reducing clutter and improving airflow. However, some users with ultra-compact cases may need to plan cable routing carefully.

This power supply uses a 92mm FDB fan to maintain quiet operation, with noise levels as low as 18 dBA. The fan is designed to efficiently cool the PSU while keeping sound levels to a minimum, making it a good choice for noise-sensitive users or quiet PC builds.

The SilverStone SX700-PT is ideal for high-performance gaming PCs, particularly those with small form-factor cases. It provides stable power with its single +12V rail and 700W capacity, which is sufficient for most gaming builds. However, for users with particularly high power requirements or unusual case configurations, double-check the PSU's size and power needs.

The fully modular design of this PSU allows you to only use the cables you need, reducing cable clutter and improving airflow inside your case. This can be particularly useful in compact builds where space is limited, as it helps keep the interior tidy and enhances cooling efficiency.

Yes, the 700W output and stable +12V rail provide plenty of power for high-end components and overclocking. Users have reported smooth operation even when using demanding components like high-performance graphics cards and CPUs, making it a solid choice for gamers and enthusiasts.

The use of all Japanese capacitors in this power supply ensures durability and reliability, which is especially important for long-term use. These capacitors are known for their extended lifespan and stable performance, so this PSU should maintain its efficiency and performance over the years.

Absolutely. With 80 PLUS Platinum certification, this PSU is designed to minimize energy waste, making it highly efficient. It reduces power consumption and heat production, which can help lower your electricity bill over time while also prolonging the lifespan of your system components.

Before purchasing, consider whether you need the 700W output and if you’re building a small form-factor PC. While this PSU excels in compact builds, it may be overkill for systems that don’t demand a lot of power. Additionally, some users have noted that the price is higher compared to non-Platinum models.

Some users have reported that the price is higher compared to non-Platinum-rated models, which may be a concern for those on a tighter budget. Additionally, while the PSU performs well in most small cases, some ultra-compact builds may face challenges with cable length and routing.