I haven't been able to get a clean picture of it. My roommate might have a macro lens, but he is out for a bit.

It looks like just a few fibers that are frayed and pushed out toward the connectors. It isn't a big deal and doesn't affect the functionality at all, it is just the first time I've seen something like that.

The Icy Box came from Newegg like that, but I use it in my desktop machine. Nothing fancy, just slides on rails into the drive bay. The bay is reminiscent of removeable drives, but internal as opposed to external.