What is the difference between SFX and SFX-L PSUs? If you’re looking for a power supply that provides you with a bit more space in your PC build, then purchasing an SFX PSU might just be the option for you. The SFX format is just a smaller version of the ATX standard.

After testing and analyzing the top SFX power supplies on the market, I’ve found that finding the right unit involves balancing three critical factors: reliable power delivery for your components, efficient operation to minimize heat in compact cases, and cable management that works within tight spaces.

CORSAIR SFX power supplies are a strong choice for mini-ITX gaming rigs, home theater PCs, and compact workstations where space and performance both matter. Pair your PSU with the right small form factor case and browse our full range to find the right SFX PSU for your build.

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TFX: The size of this Power Supply is 85mm (W) x 64mm (H) x 175mm (D), and it is designed for slim and low-profile PC cases. This type of PSU is mostly used in small office PCs or home theater PC setups.

500W, TFX form factor, single +12V rails with 41.6A output, Silent 80mm Fan with 18~36dBA, efficiency 80Plus GOLD certification, fixed cable,2x 6+2pin PCI-E. Model #: TX500-G

The TFX-PFC500W power supply is a full range active PFC standard Flex-ATX unit that will fit in most small TFX form-factor cases. Has enough power output and connectors to run systems up to 500 watts, being used for versatile compact computing applications.

Since TFX Power 3 300W Gold meets the latest safety requirements, it defends the PC system against overcurrents, over- and undervoltage, short circuit, overloads and comparable failures.