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Montech

MONTECH APX 550W-Non-Modular Power Supply-80 Plus White Certified-Intel ATX12V-DC-to-DC Converter Technology- Flat Cable Design to Enhance Thermal Efficiency-120mm Fan- 5-Year Warranty (APX 550W)

  • Based on 61 reviews
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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, Mar 11
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Style: 550W


Size: 550W


Features

  • DC-to-DC technology ensures optimal power efficiency and stable output across all components
  • 80 PLUS White certified power supply ensures high energy efficiency and minimizing heat generation
  • +12V rail performance provides power and reliability for high-demand systems
  • 120mm hydraulic bearing fan provides silent operation and efficient cooling system
  • Features six essential safety mechanisms providing system stability, over-voltage (OVP), under-voltage (UVP), over-current (OCP), over-power (OPP), short-circuit (SCP), and over-temperature protection (OTP)

Description

Unlike typical white-label power supplies, APX PSU breaks convention by incorporating advanced DC-to-DC technology alongside 80 PLUS White certification. This technology ensures stable and efficient power delivery to all components, while our 80 PLUS White certification guarantees at least 80% efficiency under typical loads. This not only reduces electricity costs but also significantly minimizes heat generation, making it the optimal choice for those prioritizing performance and environmental responsibility. APX PSU excels with dominant 12V rail performance, delivering precise power to meet the demands of high-performance systems. This feature enhances system reliability under the most demanding conditions, ensuring consistent performance whether for gaming or intensive workloads. Engineered for silent operation, our 120mm fan efficiently manages cooling while maintaining quiet performance. This ensures your PC runs smoothly without distracting noise, ideal for maintaining focus during tasks or immersive gaming sessions. Backed by a comprehensive 5-year warranty, APX PSU offers peace of mind with extensive coverage against defects and issues. Combined with enhanced system safety features—including Over-Voltage Protection (OVP), Under-Voltage Protection (UVP), Over-Current Protection (OCP), Over-Power Protection (OPP), Short-Circuit Protection (SCP), and Over-Temperature Protection (OTP). This ensures your components are safeguarded, providing stable and secure operation across diverse operating conditions. Choose APX PSU for your next build or upgrade, and experience the perfect blend of cutting-edge technology, energy efficiency, reliability, and comprehensive protection for your investment.

Model Name: APX 550W


Brand: Montech


Compatible Devices: Personal Computer


Connector Type: ATX


Output Wattage: 550.0


Form Factor: ATX


Wattage: 550 watts


Cooling Method: Air


Item dimensions L x W x H: 5.91 x 5.51 x 3.39 inches


Item Weight: 1.79 Kilograms


Manufacturer: ‎Montech


Brand: ‎Montech


Model: ‎APX 550W


Item Weight: ‎3.93 pounds


Product Dimensions: ‎5.91 x 5.51 x 3.39 inches


Item model number: ‎APX 550W


Manufacturer Part Number: ‎APX 550W


Wattage: ‎550 watts


Date First Available: June 26, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Mar 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Tier A High-End PSU
After looking on cultists.network for a PSU upgrade from my EVGA 450W Bronze Plus PSU, The Montech Titan 1000W was one that caught my attention and it has definitely been great for my upgraded build. Currently running Ryzen 5 3600 (soon upgrading to Ryzen 7 5700x3d), RX 6800, and 4x8GB 3200 MHz RAM. The Titan is able to provide all my components with more than enough power at quiet noise. The smart zero fan feature is nice to have and I don't ever hear the PSU ever ramping up. When turning on/off my PC, there is a noticeable click which is normal. Another thing I noticed unlike my EVGA PSU, is that when off, there will be no electricity going through the PSU at all which was nice when upgrading the rest of my components. I was able to get it for $99 before tax which was honestly a steal for this during the time since most 850W Gold Plus PSU sold around that price. ... show more
Reviewed in the United States on July 28, 2024 by KM
    • Budget friendly!
Style: 650W Size: 650W
Works great and at an affordable cost! Love it
Reviewed in the United States on December 6, 2025 by Jared R
    • Reliable
Style: 750W Size: 750W
I've been using this power supply for about a week, and so far no issues. The fan is basically silent and you wont be hearing this at all. It is a non modular PSU though so you're gonna want a space for cable management in your pc or it'll be a hassle. Overall, for its price, its perfect.
Reviewed in the United States on August 1, 2025 by Caroline Saldana
    • Good Budget Psu
Style: 650W Size: 650W
Good budget psu. Only comes with one pcie cable with two 8pin(6+2pin) connectors.
Reviewed in the United States on January 10, 2026 by Pedro Najera
    • Great entry level power supply
Style: 550W Size: 550W
Best bang for your buck no frills power.
Reviewed in the United States on October 30, 2025 by Lacee Kirkland
    • Very reliable.
Has never failed, through two builds. Still using it, right now.
Reviewed in the United States on December 12, 2025 by Peter D Tidd
    • Great price time will tell.
Style: 750W Size: 750W
So far no issues still havent installed it in my high end build still waiting to see how it does on a much less costly build first 750w for $40 is a steal especially if it wont blow ip my pc! 😁👍
Reviewed in the United States on October 7, 2025 by Karista Ray
    • Not recommended, as it was DOA
Style: 650W Size: 650W
Sadly it was DOA when I received it and I had to return it for a refund. I bought this as it was recommend on YouTube due to it being on the C tier on the PSU list and for also being budget friendly. After struggling to figure out why my new gaming PC build wouldn't turn on, I ended up getting a different PSU (ARESGAME AGV Series 650W) for nearly the same price and it worked perfectly. I even used the "tester" device that came with the ARESGAME on this one and it proved that the MONTECH was definitely not working. So I personally cannot recommend this model if you're in need of a budget PSU and would suggest the ARESGAME AGV Series 650W instead. ... show more
Reviewed in the United States on October 21, 2025 by Sean M.

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