Deepcool PX1200G PSU Review


The Deepcool PX1200G is a good power supply, meeting the strict ATX v3.0 and PCIe 5.0 requirements. Although the average noise output is high, this is due to the increased fan speeds at high loads. At light and moderate loads, the PSU has a silent operation, and given its high capacity, you won’t hear it during most tasks. This depends, though, on your system’s configuration.

The compact dimensions are an asset, and the three dedicated 6+2 pin cables ensure compatibility with graphics cards not utilizing a 12VHPWR connector. The number of SATA connectors might be decreased compared to other offerings, but I don’t think many users need more than eight of these connectors for their systems, given the popularity of NVMe drives. The only issue with the PX1200G is the notably higher price, in the US market that I checked, compared to the Montech Titan Gold and Thermaltake GF3 models with similar capacity. Given that all units use the same platform, are covered by the same warranty, and offer similar performance levels, it will be hard for a user to pay more to get Deepcool’s offering.

To check all alternative PSU offerings, read my Best ATX v3.0 PSUs article before investing in a new power supply. You help me a lot by using my affiliate links, which don’t increase the product’s price. I get a commission from Amazon every time you do it, which can make a difference for me, especially now that I am on my own, working exclusively for my media and not for someone else.





  • Delivered full power at 47°C
  • High performance
  • ATX v3.0 and PCIe 5.0 ready
  • Properly configured OCP at 12V and OPP
  • Good ripple suppression
  • High build quality
  • Silent operation at light and moderate loads
  • Efficient
  • Good APFC performance
  • Long hold-up time
  • Long and accurate power ok signal
  • Low vampire power
  • Alternative Low Power Mode (ALPM) compatible
  • Low inrush current at 115V
  • Fully modular
  • Enough connectors, including a 12VHPWR (600W)
  • Adequate distance (150mm) between peripheral connectors
  • FDB fan
  • Ten-year warranty
  • More expensive than competitive offerings
  • High OCP on the minor rails
  • Load regulation should be tighter at 12V
  • Not efficient 5VSB rail



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