The Good The USB 3.0-based single-volume Buffalo DriveStation DDR external hard drive offers unprecedentedly superfast speeds -- even faster than high-end Thunderbolt storage devices -- at the same cost as most regular USB 3.0 storage devices.
The Bad As a single-volume drive, the Buffalo DriveStation DDR offers no options for data protection should its only internal hard drive fail.
The Bottom Line The Buffalo DriveStation DDR is by far the fastest single-volume external drive on the market and makes USB 3.0 a true alternative storage connection to Thunderbolt.
Simple, affordable, and unbelievably fast
Once in a while, there's a revolutionary product that changes the conventional expectations for the entire class of devices, and among all USB 3.0-based external hard drives, the Buffalo DriveStation DDR is that product.
Housing a standard 3.5-inch hard drive on the inside, the new external storage device is the first that incorporates 1GB of DDR3 memory as cache to boost the data speeds. In my testing, the DriveStation DDR's USB 3.0 real-world speeds trumped even those of the most advanced Thunderbolt storage systems. It's just ridiculously fast.
If you're looking to get an external hard drive for a desktop that supports USB 3.0, the Buffalo DriveStation DDR is definitely an excellent buy. Maybe you should even get two for backup purposes since the drive is slated to cost just $140 and $180 for 2TB and 3TB, respectively.