ASE Labs has always explained the benefits of having redundant storage and backups. There are series of articles devoted to each technology. Sans Digital is a big player in RAID enclosures and their latest model, the MobileSTOR MS2UTN+ delivers USB2 and eSATA support to a 2 disk array of your choosing. This combines the best of both world for data backup and redundancy. It really is an excellent product.



Link: ASE Labs