Introduction

I usually avoid reviewing products that are not available on the market, but this rule is for EOL products and not those that haven’t been released yet, this is why I’m making an exception for the CSX 850M-G SFX OEM PSU, which will soon be available under more well-known branding. This model is at the end of the development phase, a good opportunity for me to show you the near-future of high-capacity SFX PSUs with PCIe 5.0 connectors. Despite compact dimensions, SFX PSUs get stronger and more refined by the day, but this also affects performance and noise output, so there is a Wattage line that shouldn’t be crossed; else, both factors will suffer.

CWT’s upcoming CSX (M) line will consist of four members with 650 – 1000 W capacities, all featuring 12+4 pin PCIe connectors, supporting forthcoming GPU generations. Investing in a PCIe 5.0 compatible PSU will become essential, given the new 16 pin connector, along with changes it brings, renders the majority of existing PSUs incompatible with next-gen GPUs from NVIDIA and AMD. It is uncertain whether upcoming GPUs will be partially compatible with the non-ATX 3.0 ready PSUs or their power needs will require 12+4 pin connectors and ATX 3.0 (which includes PCIe 5.0) compatibility. Another thing you shouldn’t confuse is PCIe 5.0 and ATX 3.0 compatibility. A PCIe 5.0 ready PSU is not automatically ATX 3.0 ready, but the other way around is correct. An ATX 3.0-ready PSU is also PCIe 5.0 compatible.

Specifications