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The Corsair SF850 is a tiny power supply measuring only 125mm x 100mm x 63.5mm (WxHxD). The finishing quality is high and neutral by colour with some silver white accenting on the lettering. The unit weighs around 0.965kg.
The fan is hidden behind a grille at the top. We will take a closer look at the fan when we open the unit shortly.
To give you an idea of just how small these units are – you can see the 1000W model above, resting on the Antec HCG1000 unit we reviewed recently.
One side of the power supply is home to the power connector and switch, alongside a vented panel to aid with airflow.
The other side houses the modular bay, split into three rows and labelled for ease of use during the install phase.
The power sticker shows that this unit can deliver 70.8A via the +12 rail (down from 83.3A on the 1000W unit). The minor +3.3V and +5V rails can deliver 20A. Corsair have removed the -12V rail from this power supply to increase efficiency and to remove some costs. Technically there really is no need for this anyway in 2024.
