$199 can barely get you a 1TB USB disk, This is a NAS, along with many function supported. It has 2x 500gb disks inside however NO RAID.
Product Details
http://www.lacie.com/au/products/product.htm?pid=10882
- Up to 1TB (terabyte) capacity for sharing files
- Ideal for backing up home or office data
- Access your shared folders from a distance via FTP
- Stream multimedia content on your home entertainment network
- Upright, stackable or rack-mountable
what is NAS? how is this different to USB ones?