Overview

The darkFlash PMT1250 Fully Modular Power Supply is a robust 1250W PSU designed to meet the needs of high-performance systems. It supports ATX 3.1 and PCIe 5.1, making it ideal for next-generation GPUs. With an 80 PLUS Gold efficiency rating, it provides significant energy savings while maintaining excellent power stability. Additionally, its compact 150mm depth allows for flexible installation in tight spaces. This power supply is a solid choice for users looking for efficient and reliable performance in demanding builds.

Features & Benefits

This modular PSU offers a range of benefits, including a native 12VHPWR cable for next-gen GPU support, providing up to 600W of power for high-demand components. The use of 100% Japanese 105°C capacitors ensures long-lasting durability and reliable stability even under heavy loads. The fully modular design enables efficient cable management, improving airflow and keeping your build clean. Additionally, with an efficiency rating of up to 90%, this power supply helps reduce electricity consumption, making it a cost-effective choice for gamers and enthusiasts.

Best For

The darkFlash PMT1250 is best suited for users building high-performance gaming PCs, especially those running high-end GPUs. Its efficient power delivery and modular design make it perfect for enthusiasts looking to customize their builds. This power supply is ideal for those seeking a balance of energy efficiency and power without sacrificing performance. Its compact size also appeals to those with limited space, but its capacity makes it a great fit for demanding systems that need stable power under load.

User Feedback

Users have rated this PSU 4.4/5 stars, with most praising its reliable power for gaming setups and demanding applications. The fully modular design is highly appreciated for improving cable management and airflow, allowing for clean and organized builds. However, some users have noted that its size might be a bit bulky for smaller form-factor builds, which could be a limitation for those with tight spaces. Overall, the product is well-regarded for its stability and longevity, particularly for users with high-performance needs.

Pros

  • The fully modular design allows for excellent cable management, keeping builds clean and organized.
  • Users report great reliability, particularly for high-performance gaming systems with demanding hardware.
  • 80 PLUS Gold efficiency ensures energy savings and quieter operation compared to non-certified units.
  • Native 12VHPWR cable support delivers up to 600W of power for next-gen GPUs.
  • Compact size (150mm depth) makes it easy to fit into mid-to-large cases without taking up excessive space.
  • The 5-year warranty provides peace of mind for long-term use.

Cons

  • The power supply is relatively bulky, which may be problematic for small form-factor PC builds.
  • Some users report that the fan can be noisy when the system is under heavy load.
  • While the unit offers great performance, the high wattage may be overkill for users with less power-hungry setups.
  • Its premium features come at a higher price point, making it less suitable for budget-conscious buyers.
  • A few users mentioned that the cables could be more flexible for easier installation in cramped spaces.
  • Not all users find the fan curve to be ideal, as it may ramp up under moderate loads.

Ratings

After analyzing verified user feedback from diverse sources and languages, we present the aggregated ratings for this power supply. The scores reflect both strengths and pain points, based on genuine reviews and excluding spam, bot-generated, or incentivized content. Users across different platforms have shared their experiences, providing a broad and balanced view of its performance, build, and reliability.

Performance
93%
Many users are impressed by the overall performance of this power supply, noting its ability to consistently deliver stable power during demanding gaming and high-load scenarios. The high wattage and efficiency support even the most powerful gaming PCs and GPUs, offering reliability for extended use without issues.
Some users have mentioned that while the performance is excellent, the unit can become quite warm under heavy loads, leading to concerns about long-term heat management. A few have also noted that the cooling fan could be quieter, especially during high-performance tasks.
Energy Efficiency
90%
Buyers have praised the 80 PLUS Gold certification, which ensures that the power supply runs efficiently without wasting energy. This not only reduces electricity costs but also contributes to a cooler and quieter PC setup, making it an attractive choice for users looking to save on their power bills.
While the efficiency is impressive, some users felt that it could be better at higher loads, especially when paired with very high-end GPUs. There were a few comments regarding a slight drop in efficiency under peak power demands, which might concern those looking for top-tier power optimization.
Build Quality
88%
The build quality of this power supply is generally well-regarded, with users noting the use of durable Japanese capacitors and a solid, compact construction. The fully modular design adds to the overall quality, making it easy to customize and manage cables, which users appreciate for both aesthetics and performance.
However, a small number of users have expressed concerns about the power supply's size, especially in smaller cases. While compact in depth, the overall dimensions may cause compatibility issues in very tight spaces, leading to installation difficulties for those with space constraints.
Ease of Installation
85%
The fully modular design has been widely praised for making installation and cable management much easier. Users mention that with clear labeling on the cables and a straightforward setup process, they were able to quickly integrate the unit into their builds without confusion or hassle.
Despite its modular nature, some users report that the cables could be more flexible, which would make routing them in cramped cases even simpler. A few also found the provided cables slightly too short for certain setups, leading to the need for additional purchases.
Compatibility with GPUs
91%
This power supply receives high marks for its ability to support next-gen GPUs, thanks to the native 12VHPWR cable that can provide up to 600W for demanding graphics cards. Many users running high-end systems with the latest GPUs found this power supply to be a perfect match for their needs, delivering consistent, reliable power.
A few users with older or mid-range GPUs have noted that they didn’t fully utilize the 12VHPWR cable, which made the added feature unnecessary for their builds. Some of these users felt that the power supply might be overkill for less demanding systems, making it less cost-effective for them.
Cable Management
87%
Users particularly appreciate the modular design for its contribution to better cable management. The ability to only install the cables you need reduces clutter, improving airflow and reducing strain on the system's components. Clean cable management is often mentioned as one of the standout features of this PSU.
Despite its modularity, some buyers mention that the cables themselves could be more flexible for easier installation in tight spaces. A few also reported having difficulty with managing the cables in particularly compact builds, where space limitations still posed challenges despite the modular setup.
Noise Levels
80%
20%
For most users, the noise levels are acceptable, with the fan running quietly under normal loads. The power supply provides a good balance between performance and sound, with only minor noise reported during typical gaming or work tasks.
However, some users have pointed out that the power supply can get noticeably louder under heavy loads, especially during extended gaming sessions or high-performance tasks. The fan noise may become distracting for those seeking a completely silent system.
Size/Compactness for Builds
75%
25%
This power supply is appreciated for its relatively compact size, especially in terms of depth, which fits well in mid-tower cases. Users mention that this smaller form factor makes it easier to work with in various case types without taking up too much room.
However, some users have found it bulky overall, especially in cases with limited space for power supplies. A few have had issues fitting it into smaller cases due to the width and height, which makes it less ideal for users working with ultra-compact setups.
Value for Money
92%
Buyers generally consider this power supply to offer excellent value for money, with its combination of performance, efficiency, and build quality at a competitive price. Many users feel that the high-end features and long-term reliability make it a worthwhile investment for serious gamers and PC builders.
Some users, however, feel that the power supply is more than they need for their systems, particularly for lower-tier gaming setups. While the value is high for power users, those with more basic needs may find it somewhat overpowered and potentially unnecessary for their build.
Customer Support
78%
22%
The warranty and customer support offered by darkFlash are generally considered solid by users. The 5-year warranty provides peace of mind for those concerned about longevity and potential issues down the line. A few users have reported positive experiences with customer service when needed.
However, some customers have voiced frustration with response times from support, with a few mentioning delays in getting timely assistance. This has led to some dissatisfaction, particularly for those requiring immediate help with installation or troubleshooting.
Durability
89%
Durability is one of the strongest points for this power supply, with users appreciating the robust Japanese capacitors and solid construction. Many report using it for months or even years without any signs of wear, contributing to its overall reputation for long-lasting reliability.
While most users find the unit durable, a few have raised concerns about the long-term wear of the fan, which may require maintenance or replacement after extended use. These concerns were minimal but mentioned by a small number of users.
Warranty
83%
The 5-year warranty is a strong selling point for many users, providing reassurance about the quality and longevity of the product. Buyers appreciate the protection it offers, particularly for those investing in a high-powered system.
While the warranty itself is a positive aspect, some users have found the claims process to be cumbersome or unclear. A few users reported difficulty in understanding the terms or in getting their warranty claims processed promptly.

Suitable for:

The darkFlash PMT1250 Fully Modular Power Supply is an excellent choice for users looking to build high-performance gaming PCs or workstations with demanding hardware. Gamers who plan on using next-gen GPUs will benefit from its native 12VHPWR cable support, capable of delivering up to 600W of power. Those seeking energy efficiency without compromising on performance will appreciate its 80 PLUS Gold certification, ensuring reduced power consumption and quieter operation. Additionally, PC enthusiasts working with custom, compact cases will find its 150mm depth ideal for easier installation in mid to full-sized cases.

Not suitable for:

This power supply is likely not ideal for users with smaller form-factor builds or those on a tighter budget. The relatively large size may cause compatibility issues in smaller cases, and its high wattage could be overkill for users with more modest PC configurations or lower power requirements. Additionally, those who are sensitive to noise might find the fan's increased volume under heavy load a concern. Budget-conscious users looking for basic, low-cost power solutions might not get the best value out of this unit, as its advanced features cater more to power users and enthusiasts.

Specifications

  • Wattage: Provides 1250W of total output power for demanding gaming and workstation builds.
  • Efficiency: 80 PLUS Gold certified, offering up to 90% energy efficiency for reduced power consumption and heat.
  • Modular Design: Fully modular design allows for customized cable connections to reduce clutter and improve airflow.
  • 12VHPWR Cable: Includes a native 12VHPWR cable capable of delivering up to 600W to next-gen GPUs.
  • Capacitors: Uses 100% Japanese 105°C capacitors for enhanced reliability and longevity.
  • Form Factor: Compatible with ATX form factor motherboards and cases.
  • Dimensions: Measures 5.52 x 5.9 x 3.39 inches (140 x 150 x 86 mm), compact for a 1250W PSU.
  • Weight: Weighs 5.05 pounds, providing a sturdy and durable build.
  • Input Voltage: Supports an input voltage range of 100V to 240V AC, compatible with global power systems.
  • Warranty: Comes with a 5-year warranty to ensure long-term reliability.
  • PCIe 5.1 Support: Fully supports PCIe 5.1 for the latest generation GPUs and high-bandwidth components.
  • Connector Type: ATX connector type, suitable for standard desktop PC builds.
  • Cable Length: Includes cables long enough for use in mid-to-full size ATX cases.
  • Cooling: Features a fan that automatically adjusts its speed based on load for efficient cooling.
  • Compatibility: Works with both standard and high-performance gaming systems, providing stable power for multi-GPU setups.
  • Noise Level: Designed to be relatively quiet under typical load, though fan noise may increase under heavy load.
  • PCIe Cables: Comes with multiple PCIe cables to support high-power GPUs, including 6+2 PCIe connectors.

FAQ

This power supply offers 1250W of reliable power, supports ATX 3.1 and PCIe 5.1 standards for next-gen GPUs, and includes a native 12VHPWR cable that can provide up to 600W of power for the latest graphics cards. It’s ideal for powering demanding gaming systems and high-performance hardware.

While the darkFlash PMT1250 is compact at 150mm in depth, some users report it can be bulky for very small or compact PC cases. It’s best suited for mid-to-large cases with enough room for full-sized power units and efficient cable management.

The 80 PLUS Gold certification ensures that this power supply operates at up to 90% energy efficiency, meaning it wastes less power as heat and reduces electricity costs, making it a great choice for energy-conscious users.

Yes, you can use the darkFlash PMT1250 in non-gaming builds, but its high wattage and features are best suited for high-performance setups with demanding components like powerful GPUs or multiple drives. For regular office or casual-use systems, a lower wattage PSU may be more appropriate.

Yes, the darkFlash PMT1250 is more than capable of handling overclocked CPUs and GPUs, thanks to its stable 1250W output and the 12VHPWR cable. It provides consistent and reliable power to ensure system stability during heavy load or overclocking scenarios.

The darkFlash PMT1250 comes with a 5-year warranty, giving you peace of mind in case of any issues during the product’s lifespan. This warranty covers manufacturing defects and ensures long-term reliability.

Installation is straightforward, thanks to its fully modular design. You can connect only the cables you need, reducing clutter and improving airflow in your case. However, if your case is very tight or lacks cable management options, installation might take a little longer.

Some users have noted that the fan can become audible under heavy load. While it is generally quieter than lower-efficiency models, the noise level may increase during demanding gaming or computational tasks. If noise is a major concern, you may want to consider fan curve adjustments or noise-dampening solutions.

Yes, the darkFlash PMT1250 comes with all the necessary cables for high-end gaming PCs, including the 12VHPWR cable for next-gen GPUs. However, it’s always worth checking the cable compatibility with your specific setup to ensure everything fits your configuration.

Yes, this power supply is ideal for multi-GPU setups, as its high 1250W capacity ensures enough power for multiple graphics cards. It supports the latest PCIe standards and offers the necessary power delivery for demanding configurations, making it a solid choice for enthusiast builds.