Overclockers Club published a review on the AZZA Zen 8100
A quote from the article:
Onwards! Alright, it's not often I don't have much on the negative side to say. AZZA has a few minor flaws for an overall decent chassis, one of which is the fans. Having fans with a fixed speed is great for some quiet operations, but it doesn't help with a loaded case, as only so much unwanted hot air can be pushed out. An easy fix for AZZA would be to have them as 3-pin fans instead of being powered by 4-pin Molex cable. Any modern computer has a bunch of fan connectors on the motherboard, so it seems counter productive to force the consumer to use a bulky power connector.AZZA Zen 8100 Review @ OCC