Century Japan introduced CRNS35U3MR "EX Volume" 2-bay HDD enclosure, which provides fast external storage. The enclosure holds two 3.5-inch SATA hard drives in lockable caddies. It allows you to run them in standalone (as independent USB mass-storage volumes), or in RAID 0 (performance) and RAID 1 (redundancy) modes. To alleviate host interface bottlenecks, the enclosure utilizes USB 3.0 SuperSpeed interface.

The enclosure draws power from an external AC power line (power supply is located internally), its controller logic spins down the hard drives sensing extended periods of inactivity (5 minutes, by default). The enclosure also has a temperature-controlled fan that completely spins down, below a temperature threshold. Measuring 130 x 210 x 115 mm (WxDxH), the enclosure weighs about 1922 g. Slated for early-June, the CRNS35U3MR from Century is priced at 14,800 JPY (US $186).