1 DD received being impossible to operate, I made a request for referral to Amazon. Super procedure and the result! I do not expect a speed, simplicity and efficiency alike. Satisfaction on the line. As for the new Iomega - Prestige - External hard drive - 2 TB - 3.5 "- USB 2.0 - Charcoal Grey, nothing to say, it works perfectly, it is normal that a manufacturing error to occur, but we can do. Confidence in this case to Amazon.