SFX vs SFX12V

[KILLZ0NE]

What is the difference between an SFX psu and SFX12V?

 

[bjornl]

SFX specification called for 20 pin mb plugs and doesn't require sata connectors. SFX12V changed the spefication to 24pin mb connector and required sata plugs.
http://www.tomshardware.com/reviews/power-supply-specifications-atx-reference,3061-4.html