Raidon (http://www.raidon.com) has released the MiniTANK R4-SB3, a compact USB 3.0 data storage enclosure with built in hardware RAID 5, speed and security in a small form factor with four HDD or SSD drive capacity.
It accommodates four 2.5-inch HDDs or SSDs, and is equipped with an USB 3.0 interface. It measures 10 x 14 x 7 inches and sports a metallic casing that's cooled by a ball bearing fan.
RAID 5 software is onboard the MiniTANK. No software is required, and it's operating system independent. Contact Raidon for pricing options.