ZyXEL's new entry into the NAS market is the NSA-2400, which ZyXEL refers to as an "Enterprise-Class Network Storage Appliance." It is a four-drive RAID device with gigabit Ethernet support, running on the Linux OS. You can load it up with up to four SATAII drives for a total capacity of 4 TB (support for 1 TB drives was noted by Zyxel as this review was finishing up).
I have to admit, I got kind of excited installing this device on my network. I have a few single-disk NAS devices in my LAN that aren't that impressive. The NSA-2400 with its front cover closed has an imposing Darth Vader-like stature next to my little NAS(es).
Read the rest of the review on SmallNetBuilder.