Introduction

Not all gaming machines must be large ATX towers. While there's no arguing with physics and the hundreds of watts of heat generated by the most powerful GPUs and CPUs, very potent gaming machines can still be fitted within a smaller power envelope and form factor. This brings us to the Corsair SF750 (2024) - an SFX form factor power supply meant for powerful yet compact machines. The standard 150 x 86 x 140 mm dimensions of an ATX power supply means that its total volume is just over 1.8 liters. In sub-10-liter cases that's quite a lot of space to spend just on delivering power to the PC's components. In such situations smaller farm factors like SFX comes in handy with just under 0.8 liters of volume and 125 x 63.5x 100 mm dimensions. And while less than half of available volume means less space for components and potentially higher heat buildup, current high efficiency standards make high output small PSUs a very feasible option.



In a sense, the SF750 reminds me of the situation with the small flagship smartphones, where the choices continue to be very limited. As an SFF enthusiast myself, I'm also eager to see what PSUs are on the market not only when it comes to mini PCs, but also to more high-end systems. With 750 W output, 80 Plus Platinum efficiency rating and ATX 3.1 support, the SF750 definitely fits the "small flagship" territory, capable of powering very demanding single GPU rigs.

Those of you who have been reading PSU reviews here for a while might remember that the Corsair SF750 was already tested back in 2019. While Corsair does not indicate a different naming, this is the actual successor to the original SF750, released in late 2024, boasting ATX 3.1 support. And while 750 watts might seem like a lot of power to pack in such a small factor, Corsair also has the more powerful SF850 and SF1000 in their lineup. But today the SF750 is representing the series and here's a glimpse at its spec sheet.

Specifications

Packaging and Accessories

The box of the SF750 is simple yet informative. On the front face (as well as on the sides) we see the photo of the unit and at the back we find all the main electrical specifications, features, and diagrams of the efficiency levels, as well as the fan noise profile. A list of included cables can also be found at the bottom of the box.


Inside the box we have two sections: one for the PSU itself and the second one for the included cables and other accessories.


Besides the modular cables Corsair includes an AC cable, three Velcro ties, plenty of regular zip ties, a brief manual, a bracket allowing to mount the PSU in a traditional ATX mounting niche, and enough screws to both install the PSU in a case and use the ATX frame. The list of all included cables and their lengths is provided in the table below.