The caddy 3.5 inches does not meet standards, impossible to put internally in a 2009 MacPro (despite the visuals on Amazon because the case in the pictures does not match what is delivered), forced to buy a box Special (thus the Amazon promo's on that shot a scam because the product is used in more than expected final) Note that cloning app is not for Mac and the volume is not even recognized a MacPro without having formatted In short average SSD product range and correpondant not at all what I received So rather disappointed with this purchase even if the SSD once (well) mounted changes the life of my MacPro