Mediasonic ProRaid 8-Bay USB 3.0 / eSATA Enclosure for $290 + free shipping
newegg offers the Mediasonic ProRaid 8-Bay USB 3.0 / eSATA Enclosure, model no. H8R2-SU3S2, for $349.99. Coupon code "SPRINGCL22" cuts it to $289.99. With free shipping, that's the lowest total price we could find by $59. This enclosure can hold up to eight 3.5" SATA hard drives with up to 3TB per drive. It supports JBOD, spanning, RAID 0, 1, 5, 10, and 50. Deal ends April 8.
2 very similar deals were also reported by some other sources: