Western Digital NAS Server with up to 4TB storage

Aimed primarily at small business users and "multimedia" junkies, the 4-bay NAS comes with gigabit Ethernet, support for multiple RAID configurations, and even the ability to act as an iTunes music server. NAS server has four hard-drive bays: each can accommodate a 3.5-inch SATA internal hard drive up to 1TB in capacity, making the server's total storage space up to 4TB. The NAS server features Gigabit Ethernet for network connectivity and three USB 2.0 ports for additional external storage or power management with a UPS unit. Unfortunately, these USB ports can't be used for any other USB-related functions such as print-serving or USB cameras. The four hard drives can be installed or removed completely without using a tool and set up in RAID 0, RAID 1, or RAID 5 configurations. Simple setup and easy-to-use administration interface; lots of storage, and RAID 5 for data protection; relatively easy access to drives for replacement. However, there is no USB printer support; only works with Western Digital hard drives.