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The ReadyNAS Ultra 4 is a workhorse NAS server best suited for home- or small-office environments, where heavy data sharing and backups are required.

... the ability to configure the ReadyNAS Ultra 4 in any way you want makes it a good option for small businesses and more experienced home users who need a versatile and reliable storage system.

Powered by a dual-core 1.6GHz Intel Atom processor, it's speedy and responsive.

A few more built-in features would sweeten the ReadyNAS’s appeal, but it’s a pretty speedy product with an unconventional method for slapping a ton of storage in an appealing networked configuration.

Performance might be fantastic but the feature set isn’t that much greater than any other high-end NAS device. The major concern is the very high price; even without hard disks the unit is prohibitively expensive.

n a nutshell, if you're trying to decide between an Ultra 4 and NVX, choose the Ultra 4 unless you can get a really good deal on the NVX ... the Ultra 4 (via the D410 Atom) has 64 bit support, which will allow for future volume support beyond 16 TB.