The CAXB Series external hard drive delivers reliable storage expansion and the incredible 3.0Gbps transfer speed of eSATA, all in one sleek, black aluminum package. The transfer speed, at six times faster than USB 2.0, will blow you away. The external hard drives solid aluminum enclosure boasts exceptional heat dissipation for near-silent, fan-less operation. The CAXB is remarkably durable, offering state-of-the art shock absorption and superior all-around performance, and its stackable design gives you a streamlined, uncluttered workplace..