Tom's Hardware Guide published a review on be quiet! SFX L Power 600W PSU
A quote from the article:
be quiet!'s small form factory-oriented SFX-L portfolio now includes 500W and 600W models, and we're reviewing the higher-capacity version today. In addition to modular cabling, it offers good performance and quiet operation.be quiet! SFX L Power 600W PSU Review @ Toms Hardware