PC Perspective published a review on the Corsair SF750 SFX Platinum Power Supply
A quote from the article:
The latest entry in the power density race to cross our test bench is the SF750 power supply from Corsair. The SF750 is housed in a standard SFX small form-factor chassis and can deliver up to 750W of combined DC power. Note we said standard SFX chassis – not an extended or lengthened version.Corsair SF750 SFX Platinum Power Supply Review
As you can see in the photo above there is quite a difference in size between the three form-factors.
In addition to their compact size all three Corsair SFX Platinum Series SFX power supplies feature fully modular cables and are 80 Plus Platinum certified for high efficiency. They feature a Zero RPM Fan Mode for silent operation at low to medium power and come backed by a 7-year warranty. And an SFX-to-ATX mounting bracket is included. We will be taking a detailed look at the Corsair SF750 Platinum power supply in this review.