Sans Digital TR4M+B TowerRAID 4-Bay eSATA Tower Storage Enclosure for $89.99 shipped after promo code SANS2113US and this $30 rebate.  Here is a screenshot before this $30 rebate for your reference. It comes with RR622 RAID controller card, features four hot-swappable 3.5" drive bays with up to 12TB capacity and supports RAID 0, 1, 10, [...]