OCIA.net has posted their review of the Computer Geeks eSATA Enclosure HE-2521B

External drives are indispensable when it comes to transporting large amounts of data or having a means of portable storage for backup. There's no doubt that USB flash memory drives are hard to beat when it comes to small and lightweight, but sometimes they just don't offer enough capacity. The external drive enclosure we have today from Computer Geeks is a very small unit designed for a 2=BD" SATA notebook drive, and features two methods for connecting to a computer, either through USB 2.0 or eSATA. As an added bonus it supports powered eSATA, a new standard for supplying operating voltage for the unit over the same cable that's used for the data stream so a separate AC adapter is not required.

Computer Geeks eSATA Enclosure HE-2521B Review