The Seagate Constellation ES 2TB hard drive was designed to be the best of breed mechanical drive. Seagate Constellation ES 2TB drives are enterprise grade, having a high level of reliability and low power usage. In my professional experience I have found the phrase "enterprise grade" to mean "god tier", and enterprise grade options can cost 1000% more than desktop grade. At $269.99 the Seagate Constellation ES 2TB drives look like a real value. The real question is how much is your data worth?