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SATA Express specification starts ratification

Posted: 09 Jan 2013     Print Version  Bookmark and Share

Keywords:SATA Express  PCIe solutions  solid state drives  HDD device segment  microSSD 

SATA Express, a new specification that standardises PCI Express as an interface for client storage, has started the ratification process, according to the Serial ATA International Organisation (SATA-IO).

SATA Express has moved into the member review stage, the final step before the specification's release to SATA-IO members. It will be available to the general public in the next version of the specification and is expected to be completed by 2013.

"SATA-IO members have worked together to create the SATA Express specification to bring the scalability of PCIe to client storage," said Mladen Luksic, SATA-IO president. "This industry-wide effort has made a new level of performance available to client applications and enables connectivity to SATA Express enterprise hosts via the SFF-8639 multi-function connector."

SATA Express enables an ecosystem for client storage in which SATA and PCIe solutions can coexist, providing a low-cost solution to fully utilise the performance of next generation solid state drives (SSDs) and hybrid drives. PCIe technology enables interface speeds of up to 1GB/s per lane in the client space, as compared to today's SATA technology at 0.6GB/s. Storage devices not requiring the speed of SATA Express will continue to be served by existing SATA technology. The specification will define new SATA Express device connectors and motherboard connectors that will support both new PCIe drives and existing SATA devices.

SATA Express is one of several specifications from SATA-IO designed to offer low-cost, high performance storage solutions optimised for specific device segments. Since its introduction in 2001, SATA technology has penetrated 99 per cent of the PC market and evolved to provide options for a number of applications beyond traditional hard disc storage. SATA is now implemented in a variety of applications including solid state and optical drives, embedded mobile devices, consumer electronics products and enterprise storage.

Key specifications for implementing SATA technology beyond the HDD device segment, include mSATA, a low-profile solution for mobile computing devices and other small form factor applications, SATA Universal Storage Module (USM), an integrated SATA interface for providing portable, volume storage I/O to consumer electronics devices as well as PC applications, and SATA microSSD, an embedded, single chip solution which connects directly to the motherboard to enable ultra-thin form factor devices.

More information on these and other SATA specifications is available at www.sata-io.org.





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