There are several reasons why chose Akasa's Integral S enclosures - for starters, they offer USB 3.0. However, the enclosures also boast thick and tough aluminum that also cools helps cool the drive inside. The enclosures support all capacities and with such sleek looks, Integral S caters to just about anyone.
Integral S enclosures go for €45-€50 in the EU. Naturally, the competition isn't idle and there are many affordable external USB 3.0 enclosures for 3.5'' drives to be found. USB 3.0 may be a good reason to buy a new enclosure but you may want to consider where you'll be using it firs. Namely, USB 3.0 is still far from being a standard feature, but there's no need to worry either because it's backwards compatible with USB 2.0. Anyhow, buying a USB 3.0 enclosure is certainly a safe investment and Akasa's Integral S USB 3.0 enclosures are definitely worth looking at.