Other areas are:
1. Does it come with a power supply? Some laptops don't provide enough to power up those drives.
2. Does it come with some USB Y CABLE to help with power?
3. Is it rugged? Some are better than others at surviving a few inch drop.
Looking for a HD enclosure for a 2.5" IDE 9.5mm hard drive that is compatible with Microsoft Vista and Mac OSX or higher. Other than finding an enclosure to meet those specs is there anything else that I should be worried about when shopping for an enclosure?