Western Digital (WD) has unveiled the My Passport Pro. The company says it’s the first portable, Thunderbolt-powered, dual drive solution.

It sports user-selectable RAID functionality without the need for power adapters or cables. My Passport Pro is available in 2TB or 4TB models with prices of, respectively, US$299.99 and $429.99.

Directly powered by the integrated Thunderbolt cable, the drive clocks in at speeds u to 233 MB/second. The user-selectable RAID function lets you choose data striping (RAID 0) for better performance or mirroring (RAID 1) for data redundancy. Go to www.wd.com for more info.