Assuming the Amazon SC101 link is accurate, it sounds pretty similar to me:
Install 1 or 2 IDE* Drives of any capacity from 80GB to 800GB
Offers Z-SAN technology for fast, block-level access
Ensures maximum protection against data loss via mirrored volumes
Keeps pace with your future needs by supporting additional Storage Central systems
Connects to router via Ethernet port
Easily access files through letter drive in 'My Computer'The main point being the Z-SAN block level access over Ethernet (rather than file level access like with NAS) and the propitiatory software required to access it. You can't read the drives in anything else and it's prone to corruption, which would worry me.
It would also concern me greatly that it only supports 32bit XP and earlier, and if you read the reviews you'll see it's not very reliable. For example, the drive mappings allegedly disappear after hibernation and need a to reboot to get them back.
Oh, here's a story for you:
http://www.theinquirer.net/inquirer/rev ... killed-pcs
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