Hi folks, I'm using for a couple of weeks the new iMac 27 (basic one), and I bought an ICY BOX IB-120CL-U3 and 2 WD green caviar 3To for backup purposes. I use superduper software to start the first backup copy. I am very surprise to see these figures below: effective speed below 15MB and "max speed" according to system report being 12MB... Any idea? That's annoying as I was seeking for this USB3 speed. Here the speed in superduper, from the imac drive to the backup drive: Here the system report: (The ICY BOX is meant to be UBS3 compatible and I used the blue cable that was in the package.) Thanks for your help!