mwave offers the Sans Digital 4-Bay Serial ATA to eSATA RAID Enclosure, model no. MS4UM+, for $109.99 with free shipping. That's the lowest total price we could find by $10. This JBOD tower can hold up to four 3.5" SATA hard drives (maximum storage capacity of 12TB) and features port multiplier technology, USB 3.0 connectivity, and more.