Corsair RM850x ATX V3.1 (3rd Gen 2024) Review

The Corsair RM850x measures 150 mm x 85 mm x 160 mm (WxHxD) and it weighs around 1.8KG. These dimensions will suit any ATX chassis.

The fan is protected behind a rather fancy looking grille, offering a lot of airflow capabilities. The 140mm unit is marked as a high grade fluid dynamic bearing model. We will take a closer look at this shortly when we open the unit.

The modular bay is split into three sections as shown in the image above. These are all clearly labelled for ease of installation.

The other side of the power supply is home to the power connector, switch and a fan control knob. This allows the end user to tweak the fan speeds under moderate loads, and you can even disable it completely at low loads.

The RM850x delivers 20A to both secondary +3.3V and +5V rails. The +12v primary rail can output 70.8A.

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