mwave offers the Sans Digital TowerRAID 4-Bay Serial SAS / SATA RAID 5 Storage Enclosure, model no. TR4X+BHA, for $279.99 with free shipping. That’s $30 under our June mention and the lowest total price we could find by $29. It supports four 3.5″ SAS or SATA hard disk drives and features a PCI-Express 4x controller, 300MB/s read/write performance, and more.

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