Power Over eSATA Initiative

Serial ATA International Organization (SATA-IO) recently announced the Power Over eSATA initiative. SATA-IO has begun work on a new specification that will provide power to external SATA (eSATA) devices without the need for a separate power connection. Enhancing eSATA with power delivery will provide a new level of convenience to the designer and the end user. Led by the organization’s Cable and Connector group, the specification is targeted for completion in the second half of 2008.

eSATA devices currently require an external power adapter to supply the necessary voltage for operation. The new SATA-IO specification will eliminate this requirement by providing power for a single drive directly from the host system using the Power Over eSATA cable. Key benefits will be to maintain compatibility with the existing eSATA connector form factor and retain high performance at the current maximum interface transfer rate of 3Gb/s (gigabits per second). External SATA offers the only 3Gb/s bus optimized for storage performance. Data from IDC shows that eSATA can transfer a two-hour high-definition movie in less than one minute.

SATA-IO is committed to preserving the same cost-conscious design for eSATA as mainstream SATA technology. That’s why the organization is architecting solutions to ensure that the forthcoming Power Over eSATA specification eliminates the requirement for a separate power source, while maintaining compatibility with the existing eSATA connector form factor and its 3Gb/s speed.

SATA-IO is a consortium dedicated to sustaining the quality, integrity and dissemination of SATA technology.

More info: SATA-IO