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Newegg.com has the Rosewill RSV-S4-6G SATA 150 & 300 4 3.5″ Drive Bays RAID 0, 1, 10, 5, 5+spare, Spanning and JBOD (via Bundled Dual-port eSATA 6Gb/s PCIe 2.0 x1 RAID Controller) for $109.99 with Free Shipping. 