Mwave offers the factory-refurbished Sans Digital 8-Bay RAID Storage Tower with 6Gbps PCle Card, model no. TR8M+B, for $139.99 with free shipping. That's $141 below the lowest total price we could find for a new unit. This enclosure can hold up to eight 3.5" SATA hard drives with a max capacity of 32TB. It also supports JBOD, spanning, and RAID 0, 1, 10, 5, and 5+. A 90-day Sans Digital warranty applies.