SilverStone Technology SST-SX800-LTI-USA 800W SFX-L Power Supply

89%

Performance

Energy Efficiency

Build Quality

Noise Level

Cable Management

Ease of Installation

Compatibility with SFF Builds

Reliability & Longevity

Customer Support

Size & Form Factor

Price/Value Ratio

Fan Noise Under Load

Warranty & After-Sales Service

Overview

The SilverStone Technology SST-SX800-LTI-USA 800W SFX-L Power Supply is a compact, high-performance PSU designed for small form factor (SFF) PC builds. This 800W power unit delivers a reliable and efficient power source while taking up minimal space, making it ideal for compact systems. Certified with 80 PLUS Titanium, it ensures exceptional energy efficiency, reducing heat output and conserving electricity. This power supply is particularly suited for users looking to build high-performance systems without compromising on space or efficiency. With its robust construction and small footprint, it offers an excellent solution for modern PC builders.

Features & Benefits

This power supply offers several advanced features to enhance your PC build. The 100% modular cables allow for a clean, organized installation, while the inclusion of high-quality Japanese capacitors ensures long-lasting durability and reliable power. The fan system, which includes a 120mm fan with semi-fanless operation, delivers quiet performance, even under load. Additionally, the single +12V rail with 66A provides stable, high-output power for demanding components. With a strict 3% voltage regulation and low ripple/noise, the SST-SX800-LTI-USA ensures clean and consistent power delivery, contributing to the overall system stability.

Best For

This power supply is ideal for a variety of users. PC builders looking for a compact power solution will appreciate its small form factor, making it perfect for tight spaces and small form factor cases. Gamers and enthusiasts building high-performance PCs will benefit from the high-efficiency and stable power delivery. Its durability and silent running also make it a great option for those who demand a reliable, quiet PSU for long-term use. This power supply is best suited for individuals seeking premium performance without compromising on space or noise.

User Feedback

Users generally praise the SST-SX800-LTI-USA for its silent operation, even under load, making it an excellent choice for quiet PC builds. Many appreciate its compact size, which fits perfectly in smaller cases without sacrificing performance. The modular cable system also receives positive feedback for making installations more organized. However, some users have noted minor compatibility issues with non-SFX cases. Overall, this power supply is highly rated for its long-term reliability and stable power delivery, which are crucial for gaming rigs and other demanding systems.

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Pros

This PSU is highly praised for its compact SFX-L form factor, making it perfect for small form factor builds.
The 80 PLUS Titanium certification ensures top-tier energy efficiency, reducing power consumption and heat generation.
Users appreciate the 100% modular cables, which simplify installation and improve cable management.
The 120mm fan and semi-fanless operation result in near-silent performance under typical load conditions.
Many users find the single +12V rail with 66A capacity delivers stable and reliable power for demanding components.
The high-quality Japanese capacitors contribute to the PSU's long-term durability and consistent performance.
This power supply is well-regarded for its longevity and reliable, noise-free operation over extended use.
Ideal for gamers and enthusiasts who prioritize premium components in their compact PC builds.

Cons

Some users have reported minor compatibility issues with non-SFX cases due to the compact size and unique form factor.
The high price point may not be justifiable for users building larger systems that don't require a space-saving PSU.
Despite being semi-fanless, some users note that the fan can become audible under heavier loads.
The cable length might be limiting for users with larger cases or unconventional setups.
It may not be the best choice for those seeking a more budget-friendly PSU option with similar wattage.
Users with non-SFF builds might find other power supplies with similar features at a lower price point.

Ratings

After analyzing verified user reviews from multiple platforms and languages, including feedback from international customers, we have gathered a comprehensive view of the SilverStone Technology SST-SX800-LTI-USA 800W SFX-L Power Supply. Our ratings reflect the genuine, unfiltered experiences of users, with spam, exaggerated claims, and irrelevant content removed. The following scores offer a balanced overview, highlighting both the product's strengths and any areas that may need attention, giving you a clear picture of what to expect from this PSU.

Performance

94%

Users are generally impressed with the steady power delivery and reliable performance under various loads. The single +12V rail ensures smooth, uninterrupted operation, making it a top choice for high-demand setups. Many reviewers also highlight its ability to power demanding systems without issue, even in small form factor cases.

A few users mention that performance can be affected when pushed to the maximum load for extended periods. Some also noted that, while the PSU works well in most cases, users with extremely compact builds might experience slight overheating under very heavy use, although this is rare.

Energy Efficiency

96%

The 80 PLUS Titanium certification stands out as one of the major strengths, offering exceptional energy efficiency. Users consistently highlight how much they appreciate the reduced power consumption and lower electricity bills, especially in energy-conscious builds. This PSU keeps the system's overall efficiency high while maintaining stable operation.

Some users report that the efficiency does not seem as noticeable in lower-end or less power-hungry systems. There are also occasional mentions that the energy savings might not justify the higher price point for those not prioritizing energy efficiency in their setup.

Build Quality

89%

The build quality is a standout feature, with many users praising the high-grade Japanese capacitors used in the unit. This translates into better longevity and overall reliability, making it an excellent choice for long-term use. Reviewers also appreciate the solid construction and robust materials that contribute to a premium feel.

While the quality is generally praised, a few users mention that the compact form factor can sometimes make the unit feel a bit cramped inside smaller cases. Additionally, some have noted that while it's solidly built, the design could have been a bit more visually appealing for those building showpiece PCs.

Noise Level

85%

Many users note that the semi-fanless operation is especially beneficial for quiet builds. Even under load, the noise level remains minimal, and many find it virtually silent during normal use. The 120mm fan also strikes a good balance between cooling performance and maintaining a quiet operation, making it suitable for noise-sensitive environments.

There are reports of increased noise when the fan engages during heavy workloads. Some buyers mentioned that while it’s quiet most of the time, the fan’s noise level can become noticeable during intense gaming sessions or while performing power-intensive tasks, which may be bothersome for some.

Cable Management

91%

The 100% modular cable design is a clear advantage for users who prioritize cable management. Reviewers love the flexibility to use only the cables they need, reducing clutter and improving airflow within their small form factor builds. This feature is especially appreciated in tight spaces where cable management is a priority.

A few users expressed dissatisfaction with the length of certain cables, especially in smaller enclosures. Some also mentioned that it would be helpful to have more cable length options or extra extensions included in the box for a more customized setup.

Ease of Installation

87%

Installing this PSU is straightforward, with most users noting that the modular cables make setup quick and easy. Many first-time builders have mentioned that the clear instructions and efficient design made for a smooth installation process. The compact size further helps, fitting easily into smaller cases.

Despite the modular design, some users report that cable routing in small form factor cases can still be challenging. A few also mention that certain connectors might be a bit tight, making it harder to fit everything in cramped spaces.

Compatibility with SFF Builds

92%

The compact SFX-L form factor is ideal for small form factor (SFF) PC builds, and many reviewers have praised its ability to fit into tight spaces without compromising on power. This PSU works particularly well in small cases where space is at a premium but high performance is still required.

However, there have been some reports of compatibility issues with non-SFX cases, particularly those that aren’t designed with smaller PSUs in mind. In these instances, users had to make modifications or purchase additional mounting brackets, which could be frustrating.

Reliability & Longevity

90%

The reliability of this PSU is consistently praised, with many users reporting that it continues to perform well even after extended use. The high-quality Japanese capacitors contribute to its longevity, and users appreciate that it remains stable and efficient over the long term.

While generally reliable, a few users have encountered minor issues over time, such as reduced efficiency or slight fluctuations in power delivery after several years of use. These cases are rare but worth noting for buyers who need a PSU that will last without any potential drops in performance.

Customer Support

80%

20%

SilverStone’s customer service is generally responsive and provides timely assistance in case of issues. Several users have shared positive experiences with getting replacement units or troubleshooting support when needed. This level of customer care helps build confidence in the long-term ownership of the product.

Some users have reported delays in receiving responses from customer service, especially for warranty claims. A few reviewers mentioned that the support process can be slow and at times unhelpful when dealing with more specific technical issues, which can be frustrating for those facing difficulties.

Size & Form Factor

93%

The size and form factor are frequently highlighted as one of the standout features, making it perfect for compact builds. The SFX-L design allows users to build in smaller cases without sacrificing performance. The compact dimensions make it ideal for users with limited space but who still need an 800W PSU.

Though the compact size is a huge advantage for SFF builds, a few users found that certain cables can feel a bit too short in particularly tight cases. This could limit flexibility for users who want to route cables in the most optimal way.

Price/Value Ratio

88%

For the performance, efficiency, and build quality, this PSU offers solid value for money. Many users feel that the premium price is justified, especially considering the 80 PLUS Titanium efficiency rating and the long-term reliability. The modular cables and compact form factor add further value for those building high-performance SFF systems.

Some buyers feel that the price may be a bit high for users who don’t require the top-tier efficiency or compact size. While it’s a great choice for high-end builds, those on a tighter budget may find similar performance in slightly more affordable options.

Fan Noise Under Load

82%

18%

When operating under normal conditions, the PSU is quiet and unobtrusive. Many users appreciate how the fan stays off during lighter use, ensuring that it doesn’t interfere with the system’s acoustic environment during general use.

However, during heavy use or under load, the fan noise can become noticeable and is a point of dissatisfaction for some users. Those sensitive to noise may find it a bit intrusive during gaming or demanding tasks, especially when the fan kicks in at higher loads.

Warranty & After-Sales Service

85%

The 5-year warranty provides users with confidence in the PSU's durability and long-term support. Many reviewers appreciate this level of coverage, knowing that if anything goes wrong, they can rely on SilverStone’s warranty policy to handle it efficiently.

A few customers have expressed frustration with the claims process, mentioning that it can be slow and cumbersome. Some users also noted that the warranty terms could be clearer in regard to what types of damage are covered.

Suitable for:

The SilverStone Technology SST-SX800-LTI-USA 800W SFX-L Power Supply is ideal for PC builders who prioritize both power and efficiency in small form factor (SFF) systems. Users working on high-performance setups in compact enclosures will benefit from the 800W output and 80 PLUS Titanium certification, which ensures superior energy efficiency. Gamers and enthusiasts building small, powerful rigs will find this PSU particularly useful, as it provides stable power delivery while maintaining a quiet operation. The 100% modular cable system makes it perfect for those looking to streamline cable management in tight spaces, offering a clean and organized setup. This power supply is a great choice for anyone building a long-lasting, energy-efficient SFF PC that can handle demanding workloads with minimal noise.

Not suitable for:

The SST-SX800-LTI-USA PSU may not be the best option for users who don’t require such high-efficiency or premium features. Those building budget systems or larger PCs that don’t have space constraints may find better value in more affordable units that offer similar wattage but with less emphasis on energy savings. Additionally, users working with non-SFX cases or those who need extensive cable lengths for unconventional setups might encounter compatibility issues or limitations. Some users in larger towers may also feel that the high price point isn’t justified by the features, as the compact form factor is not a necessity for them. Finally, users who are sensitive to fan noise under load may find the semi-fanless operation a potential downside.

Specifications

Form Factor: The power supply uses an SFX-L form factor, ideal for small form factor (SFF) builds.
Wattage: This PSU provides 800W of power, suitable for high-performance gaming and compact builds.
Efficiency Certification: It holds an 80 PLUS Titanium certification, ensuring superior energy efficiency.
Modular Cables: The PSU features 100% modular cables, allowing for clean and flexible cable management.
Fan Size: A 120mm fan is used for cooling, designed for quiet and efficient operation.
Fan Operation: The PSU operates with a semi-fanless mode, activating the fan only under higher loads.
Voltage Regulation: It offers strict 3% voltage regulation, ensuring stable and reliable power delivery.
Ripple/Noise: This PSU minimizes ripple and noise, delivering clean and stable power to your system.
Capacitors: It uses high-quality Japanese capacitors for enhanced durability and reliability.
Single +12V Rail: The PSU features a single +12V rail with 66A for stable power output across components.
Dimensions: The dimensions of the PSU are 125mm x 63.5mm x 100mm, ensuring it fits in compact PC cases.
Warranty: This PSU comes with a 5-year warranty, offering peace of mind for long-term use.
Compatibility: It is designed for SFX-L compatible cases, but may have limited compatibility with non-SFX cases.
Certifications: In addition to 80 PLUS Titanium, this PSU complies with CE, FCC, and RoHS standards.
Power Distribution: The 800W output is distributed across a stable single +12V rail, ideal for high-end components.
Cooling System: The 120mm fan utilizes a low noise design for near-silent operation during normal usage.
Operating Temperature: This power supply operates efficiently within a temperature range of 0–50°C.
Power Factor: It supports a high power factor, improving efficiency and reducing energy waste.

FAQ

The compact SFX-L form factor allows this PSU to fit into smaller cases, making it perfect for custom PC builders working on space-saving setups. Its 80 PLUS Titanium efficiency ensures it delivers stable power while keeping heat and energy consumption to a minimum.

This power supply has an 80 PLUS Titanium certification, meaning it offers high efficiency (up to 94%) even under load. This results in less wasted energy and lower electricity bills, as well as improved system stability and longevity due to reduced heat generation.

While the SST-SX800-LTI-USA is designed specifically for SFX-L cases, some users have reported minor compatibility issues with non-SFX cases. It's important to double-check your case's dimensions and PSU support before purchasing to ensure a proper fit.

Yes, this power supply provides 800W of power with a single +12V rail offering 66A, which is more than enough to handle high-end gaming setups, including GPUs, CPUs, and peripherals. Its stable power delivery is well-suited for gaming enthusiasts and demanding applications.

This power supply comes with 100% modular cables, which means you only need to connect the cables that are necessary for your build. This feature makes cable management much easier and helps keep the inside of your PC neat and clutter-free.

Users generally report that this power supply operates quietly, even under load, thanks to its semi-fanless design and 120mm fan. The fan only activates under higher loads, making it nearly silent during light use or idle periods.

This PSU comes with a 5-year warranty, which is quite generous and reflects the manufacturer's confidence in the product’s durability and longevity.

Yes, many users have praised this unit for its long-term reliability. The high-quality Japanese capacitors used in this power supply ensure that it will perform consistently over time, even under extended use.

While this power supply is capable of powering high-end systems, users should consider their specific power requirements. A multi-GPU setup may demand more wattage, so it’s recommended to check the total wattage required by your components to ensure this PSU provides enough power.

Some users have mentioned that the price can be a bit high compared to other options with similar wattage. Additionally, if you’re not building a small form factor system, the compact size might not be necessary, and there could be better alternatives for larger builds.