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Corsair are using a Hong Hua 120mm fan model number HA1225H12SF-Z. This is a rifle bearing fan rated 12V 0.58A. You can buy these fans online for around £10. As I mentioned in the last review these fans are not as high grade as the Fluid Dynamic bearing models that Hong Hua make, featured in more expensive units. There are certain trade offs when you move down a product stack a little.
As with the 1000W unit we reviewed a while ago, the OEM for these units is HEC. This is a half bridge topology on the primary side with an LLC resonant converter. The secondary side uses a synchronous rectification system for the +12V rail which powers a pair of VRMS to create the minor rails.
The PCB inside is quite small and densely populated with several large heatsinks to aid with cooling – this makes sense with vertical PCB boards mounted to the main one. One of the boards is home to the DC-DC converter to generate the minor rails.
Soldering quality is high throughout and the main PCB exhibits great attention to detail in this regard. I was a little disappointed to see a Taiwanese TEAPO primary capacitor used in this unit, rated 400V 470uF (down from 680uF in the RM1000e). I had some bad experiences with TEAPO caps many years ago, so I am hoping they are better in 2025. On a plus point, this primary cap is rated 105c, not 85c.
This unit ships with OCP, OVP, SCP, OPP and OTP protections.
