Thermaltake Smart BM3 850W Semi-Modular Power Supply Review

A Closer Look

This is a pretty standard-looking PSU, but since it’s “only” 850w it’s also pretty compact with a design that’s largely square and not much bigger than the 120mm cooling fan on the top.

There’s a lot of ventilation here too, which will allow heat to be exhausted. However, there’s a hybrid fan mode allowing for zero RPM usage at lower loads and temperatures, so that airflow will allow for some passive cooling too.

There are additional cooling vents on the sides too, which are pretty uncommon, but I think they look cool, and they’ll certainly improve the cooling performance too.

The design is tidy enough though, with a large product sticker on each side, and an all-black chassis, it’ll blend into most PC builds easily enough.

On the underside, you’ll find the usual specifications sticker, showing you the capabilities of each of the rails.

This is a pretty simplistic PSU design and with it being semi-modular, there as just connectors for the 12VHPWR, peripherals, and PCIe and that’s about it.