The Western Digital MyBook 3.0 and Seagate BlackArmor PS110 have company. No longer are those two hard drives tasked with holding up USB 3.0′s banner because the Buffalo MiniStation Cobalt is launching in April and is ready to help along the cause.

Just like the other two drives, the MiniStation Cobalt can see speeds up to 5 Gpbs. The bus-powered 2.5-inch drive also plays nicely with USB 2.0 although the speeds will of course be USB 2.0-ish. Both 500GB and 640GB options will be available at launch but the company has so far not announced prices. [Buffalo via MacNN]