darkFlash PMT1250 Fully Modular Power Supply ATX 3.1& PCIe 5.1 Ready
Bottom line: The darkFlash PMT1250 Fully Modular Power Supply ATX 3.1& PCIe 5.1 Ready is a specs-and-price decision rather than a crowd-consensus one in the power supplies & cables category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
Pros & Cons
Pros
- ✓ Backed by darkFlash's warranty and support channels
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
SpecPicks Verdict
SpecPicks scored darkFlash PMT1250 Fully Modular Power Supply ATX 3.1& PCIe 5.1 Ready using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. darkFlash's power supplies & cables lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies & cables of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- [ATX 3.1 & PCIe 5.1 Compatibility] The gaming power supply supports up to 200% total power excursion and 300% GPU power excursion, offering greater stability and security than ATX 3.0 power supplies.
- [80 PLUS Gold Efficiency] The 1250-watt PC power supply enjoys up to 90% energy efficiency, reducing power waste and lowering electricity bills while ensuring stable system performance.
- [105°C-Rated JP Capacitors] Utilizes high-quality all-Japanese capacitors for exceptional durability and stability, ensuring reliability under high load conditions.
- [Native 12VHPWR Cable] The 12V-2x6 connector delivers up to 600W of power to PCIe 5.1 graphics cards. With a DC-DC structure, Full Bridge LLC resonance assistance, and 12V synchronous rectification. it ensures a stable and safe output, making it compatible with Nvidia RTX 30/40 Super and AMD GPUs.
- [Fully Modular Design] The fully modular cable design allows you to connect only the cables you need, simplifying cable management and improving airflow within the case for better cooling.
Full Specifications
| Brand | darkFlash |
|---|---|
| Wattage | 1250 watts |
| Model Name | PMT1250W Full Modular Power Supply |
| Form Factor | ATX |
| Model Number | PMT1250 |
| Compatibility | PC |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 1250 watts |
| Item Dimensions | 5.52 x 5.9 x 3.39 inches |
| Mfr Part Number | PMT1250 |
| Number of Items | 1 |
| Compatible Devices | Personal Computer |
| Power Supply Design | Full Modular |
| Warranty Description | 5-Years |
| Maximum Input Voltage | 120 volts_of_alternating_current |
| Minimum Input Voltage | 120 volts_of_alternating_current |
| Item dimensions L x W x H | 5.52 x 5.9 x 3.39 inches |
| System Bus Connector Type | ATX |
| Connector Type Used on Cable | ATX |
| Full listing title | 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) |
Ready to buy?
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) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
Related Power Supplies & Cables
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- Best 1440p Gaming GPUs in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- How to Build a Windows 98 Retro PC in 2026
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best Retro Handhelds in 2026 — From $35 to $500
More reviews from the SpecPicks archive
Browse all reviews →- Best Handheld Gaming PC Under $200 in 2026
- Best Controller for PC and Steam Gaming in 2026: G7 SE vs 8BitDo Pro 2 vs DualSense
- Started a Homelab a Month Ago: Am I Doing It Right?
- Best Budget SATA SSD for Everyday Upgrades (2026)
- Intel Arc LLM Support: What Works in 2026
- After the Claude Code Malware Scare: Build an Isolated Local Agent Rig
- CompactFlash as a Win98 Hard Drive: IDE Adapter Setup Guide
- Best IDE-to-USB Adapter for Retro PC Data Recovery: FIDECO vs Unitek vs Vantec
- RTX 4090 vs RTX 5090 for Local LLM Inference: 24 GB vs 32 GB (2026)
- Building a Period-Correct 2003 LAN Party Rig with Athlon XP and Audigy 2 ZS
- How Fast Is Local LLM Inference on a Ryzen 7 5800X (CPU-Only, No GPU)?
- Claude Sonnet 5 Costs ~$2.29/Task: When an RTX 3060 Rig Breaks Even
- Grok 4.5 Tops AutomationBench at 51%: Cloud Score vs Local-Rig Reality
- Ryzen 7 5800X vs 5700X for 1080p High-Refresh Gaming
- AA-Briefcase's 800x Cost Spread: What It Means for Local Agentic Rigs
- Local AI Video After Seedance 2.5: What GPU Generates 30-Second Clips
- CRT Monitor for Retro Gaming: What Actually Matters in 2025
- Can You Run Kimi K3 Locally? VRAM Math for the New Open Model
- Host a Quake 3 + UT99 LAN Server on a Raspberry Pi 4 in 2026
- News: ChatGPT Now Listens and Talks at Once
- How Companies Name Their Monitors: Brand-by-Brand Guide
- Build a Home NAS on a Raspberry Pi 4 8GB in 2026
- RTX 3060 12GB vs Arc A770 16GB for Stable Diffusion in 2026
- Ryzen 5 5600G vs Ryzen 7 5700X for a Budget Gaming Build
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090