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New eSATA Spec Requires No External Power

SATA-IO today announced its Power Over eSATA initiative. SATA-IO has begun work on a new specification that will provide power to eSATA devices without the need for a separate power connection. Led by the organization’s Cable and Connector group, the specification is targeted for completion in the second half of 2008. 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.

Serial ATA International Organization (SATA-IO), the consortium dedicated to sustaining the quality, integrity and dissemination of SATA technology, today announced its 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. Led by the organization’s Cable and Connector group, the specification is targeted for completion in the second half of 2008.
Today, eSATA devices 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 highdefinition movie in less than one minute.*
“Its fast transfer rate and efficient protocol makes eSATA the highest-performing external mainstream storage connection,” said Knut Grimsrud, SATA-IO president and Intel Fellow. “Enhancing eSATA with power delivery will provide a new level of convenience to the designer and the end user. By eliminating the need for a separate power connection, customers can more easily expand their storage, making Serial ATA an even more attractive solution for mainstream storage applications.”

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