This HDD enclosure earns a Worth Buying award for its great build quality and good performance. Downsides include the somewhat ugly design and the noisy fan.
"Today we are going to look at one of Startech’s external hard drive enclosures which has room for four 3.5″ SATA hard drives in a RAID configuration. This is designed specifically for corporate users so it uses the royalty free eSATA interface exclusively rather than USB3.0. As numerous corporate users only upgrade their PC systems every few years, Startech includes an eSATA expansion card with the InfoSafe which can be installed into a PCI slot."