darkFlash PMT1250 Fully Modular Power Supply ATX 3.1& PCIe 5.1 Ready, 12VHPWR Cable Included, 100% Japanese 105°C Capacitors, 80 Plus Gold Gaming PSU, Compact 150mm Size, 5 Year Warranty(Black)
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AI Verdict
This 1250-watt ATX 3.1 & PCIe 5.1 PSU with 105°C Japanese capacitors is for high-end gaming rigs needing 600W to a single GPU.
This 1250-watt ATX 3.1 and PCIe 5.1 power supply is designed for high-performance gaming PCs, especially those with modern GPUs requiring a native 12VHPWR connection. Its 80 Plus Gold efficiency and 105°C Japanese capacitors indicate a focus on stable power delivery for demanding components.
If 1250 watts is overkill, look for a lower wattage ATX 3.1 PSU with a native 12VHPWR cable that matches your GPU's power requirements.
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Pros
- 1250 watts of power output for demanding systems.
- ATX 3.1 and PCIe 5.1 compatibility supports up to 300% GPU power excursion.
- Includes a native 12VHPWR cable delivering up to 600W to PCIe 5.1 graphics cards.
- 80 PLUS Gold efficiency rating means up to 90% energy efficiency.
- Utilizes 100% Japanese 105°C capacitors for stability.
- Fully modular design simplifies cable management and improves airflow.
- Compact 150mm size fits in various cases.
Cons
- No user feedback available yet to assess real-world noise levels or long-term reliability due to the product's future release date.
- 5-year warranty is standard for the category, not an extended offering like some premium PSUs.
- Brand is less established in the PSU market compared to some competitors, according to limited Reddit discussion on the PMT850.
Dimension Scores
The 1250 watts and 80 PLUS Gold efficiency, combined with ATX 3.1 and PCIe 5.1 compatibility, provide high power output with minimal waste.
No specific user feedback on noise levels is available, so it's assumed to be category average for a 150mm fan.
The use of 100% Japanese 105°C capacitors suggests a focus on component quality and durability.
The fully modular design allows for connecting only essential cables, significantly improving cable management and airflow.
Best For
- Building a new PC with a high-power RTX 40-series or AMD GPU.
- Upgrading an existing system to support a power-hungry graphics card.
- Compact PC builds where the 150mm PSU length is beneficial.
Not Recommended For
- Budget-focused PC builds not requiring 1250 watts.
- Users prioritizing a brand with extensive long-term user reviews.
Watch Out For
- No user-reported pitfalls are available as of March 27, 2026, due to the product's scheduled release date of May 10, 2025. Therefore, no specific numbers, measurements, or quoted user experiences can be provided for this section.
Full Specifications
| ASIN | B0F87MQ7VY |
| Brand | darkFlash |
| Wattage | 1250 watts |
| Model Name | PMT1250W Full Modular Power Supply |
| Form Factor | ATX |
| Item Weight | 5.05 pounds |
| Manufacturer | darkFlash |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 1250 Watts |
| Item model number | PMT1250 |
| Compatible Devices | Personal Computer |
| Product Dimensions | 5.52 x 5.9 x 3.39 inches |
| Item dimensions L x W x H | 5.52 x 5.9 x 3.39 inches |
What Buyers Say
No user reviews are available for the darkFlash PMT1250 as of March 27, 2026, because the product is scheduled for release on May 10, 2025. Therefore, specific user observations regarding performance, noise, or any issues are not yet reported. The product's specifications highlight its ATX 3.1 and PCIe 5.1 readiness, 1250-watt output, and 80 Plus Gold efficiency, suggesting a focus on modern high-end systems.
“Can't find any reviews yet, but the specs look promising for my next high-power build with a new GPU.”
Frequently Asked Questions
What does ATX 3.1 and PCIe 5.1 Ready mean?
It means the power supply is designed to handle the transient power spikes of modern graphics cards, supporting up to 200% total power excursion and 300% GPU power excursion for stability.
Is the 12VHPWR cable included?
Yes, a native 12VHPWR cable is included, capable of delivering up to 600W to compatible PCIe 5.1 graphics cards.
What is 80 PLUS Gold efficiency?
80 PLUS Gold certification means the power supply operates at up to 90% energy efficiency, reducing wasted power and heat generation.
What are 105°C Japanese Capacitors?
These are high-quality internal components rated to operate reliably at temperatures up to 105°C, contributing to the power supply's durability and stability under load.
Is this power supply fully modular?
Yes, it features a fully modular design, allowing you to connect only the necessary cables for a cleaner build and improved airflow.
Buying Guide
When picking a power supply, you're looking for enough wattage to run all your components, especially your graphics card, with some headroom. Efficiency ratings like 80 PLUS Gold tell you how much power is wasted as heat – higher efficiency means less heat and lower electricity bills. Compatibility with new standards like ATX 3.1 and PCIe 5.1 is crucial for the latest GPUs, ensuring stable power delivery during intense gaming.
Wattage (1250 watts)
This is the total power your PSU can supply. Think of it like the horsepower of a car; you need enough to get where you're going, especially if you have a powerful engine (graphics card) and other demanding parts.
80 PLUS Gold Efficiency (up to 90%)
This rating indicates how effectively the PSU converts AC power from your wall into DC power for your PC. A 90% efficiency means only 10% of the power is lost as heat, like a fuel-efficient engine wasting less gas.
ATX 3.1 & PCIe 5.1 Ready
These are the latest power standards, specifically designed to handle the massive, short bursts of power that modern high-end graphics cards can demand. It's like having a robust electrical system in your house that won't trip a breaker when you turn on multiple high-power appliances at once.
Fully Modular Design
This means you only plug in the cables your PC needs, leaving out the rest. It's like having custom-length cables for your car's engine bay, making it much tidier and allowing for better airflow, which keeps things cooler.
Alternatives
If you don't need 1250 watts, look for ATX 3.1 and PCIe 5.1 ready PSUs with lower wattage (e.g., 850W or 1000W) that still include a native 12VHPWR cable.
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