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Seagate BlackArmor NAS 220

If you don’t need a lot of storage, Seagate’s diminutive BlackArmor NAS 220 can be tucked into a bookshelf or the even the corner of your desk where it will quietly serve the needs of a small office or workgroup with as many as 20 PCs. The NAS 220 has two drive bays and can purchased with either one or two terabytes of capacity; we reviewed the 2TB model, which is street-priced at $279. Note that since the drives come from the factory in a mirrored configuration (RAID 1), usable capacity is actually 1TB.

The NAS 220 is housed in a steel enclosure painted gloss black (keep a feather duster at hand if you’re the fastidious type). Remove three very small Phillips screws and pull off the three-sided cover to access the 7,200RPM drives, which are user-replaceable, but not hot-swappable. Unlike Western Digital’s WD ShareSpace, you’re not limited to using Seagate drives. But since the NAS 220 doesn’t support online RAID expansion or migration, most people will never access the drives unless they fail.

Finishing our look inside the box, we see Marvell’s 800MHz 88F6192 system-on-chip on the motherboard, paired with 128MB of soldered-on DDR2 SDRAM. The chip integrates a two-port SATA controller, a two-port USB controller, and a Gigabit Ethernet controller. This processor handles most of the compute workload, including running the RAID software. As mentioned earlier, the NAS 200 comes from the factory in a RAID 1 configuration, but the system also supports RAID 0 and JBOD.

Continue reading this review after the jump.