Just a warning for those considering this enclosure... I put two HDDs in it. At first it wouldn't turn on, which should have been my first clue. After unplugging and plugging back in several times, it did turn on, but the drives didn't mount. And it was making a strange sound. I removed the drives and put one of them back into a single-drive Icy Dock enclosure. The drive wouldn't mount for a long time, and then a "this drive isn't readable" box popped up. Thankfully I had backed up the data on this drive, because it appeared to be gone. I then clicked "initialize", but nothing happened. Opened Disk Utility, and the drive is listed as an external FW "CREMAX TECH CO, LTD". The options in the Erase tab are greyed out, and there seems to be nothing I can do to erase or re-initialize the drive. So then I put the other HDD in the Icy Dock enclosure, and the exact same thing happens. Does this mean both drives are dead, and somehow my Icy Dock enclosure is no longer working too? In one morning I get two fried hard drives and two failed enclosures? WTF? I guess I'll be in the market for another enclosure. Any recommendations?