Sata III (6.0Gb/s) Newest Standard

SATA 6Gb/s


Does SATA 6Gb/s require different connectors and cables to support the higher transfer speed?



The same cables and connectors used for current SATA 1.5 and SATA 3.0 Gb/s implementations can be used to connect SATA 6Gb/s devices, although SATA-IO recommends quality components be selected to ensure data integrity and robust operation at the faster SATA 6Gb/s transfer rate. Keeping the existing SATA connector form factor enables SATA 6Gb/s to be designed into the same cost-conscious hardware architectures while minimizing infrastructure changes.

Source: http://www.sata-io.org/documents/SATA-Revision-3.0-FAQ-FINAL.pdf

SATACABLES.com SATA II Internal and External cables fully support SATA III 6Gb/s, the cable spec did not change. SATA III changed Controller side specifications to obtain the faster transfer rate.

 

SATA-IO Revision 3.0 Specification

The new specification contains the following changes:

* 6 Gbit/s for scalable performance

* Continued compatibility with SAS, including SAS 6 Gbit/s. "A SAS domain may support attachment to and control of unmodified SATA devices connected directly into the SAS domain using the Serial ATA Tunneled Protocol (STP)" from the SATA_Revision_3_0_Gold specification.

* Isochronous Native Command Queuing (NCQ) streaming command to enable isochronous quality of service data transfers for streaming digital content applications.

* An NCQ Management feature that helps optimize performance by enabling host processing and management of outstanding NCQ commands.

* Improved power management capabilities.

* A small low insertion force (LIF) connector for more compact 1.8-inch storage devices.

* A connector designed to accommodate 7 mm optical disk drives for thinner and lighter notebooks.

* Alignment with the INCITS ATA8-ACS standard.

 

Speed is critical for today's storage solutions, and SATA-IO proves its leadership in this space by providing solutions that enable 6Gb/s link speeds between storage units, disk drives, optical and tape drives and protocol host bus adaptors (HBAs).

SATA 6Gb/s offers new levels of performance for networks, all while maintaining the low cost and low power for which SATA technology is acclaimed. All SATA-IO specifications from Revision 3.0 on enable 6Gb/s transfer rates.

SATA-IO Revision 3.1 Specification
The latest specification from SATA-IO includes a variety of features to extend the speed and reliability of SATA 6Gb/s technology to a wide variety of device segments, including consumer electronics and small form factor devices. These features range from power management improvements to enhancements that help improve device efficiency:

  • Universal Storage Module (USM™): USM enables developers to incorporate slots into their consumer electronics devices that accept powered, cable-free storage modules with an integrated SATA interface, offering portable, scalable storage solutions
  • mSATA – SATA for mobile computing devices, now with enhanced auto detection to provide increased interoperability by eliminating the need for a dedicated mSATA connector
  • Zero-Power Optical Disk Drive (ODD) – eliminates the power consumption of an idle SATA ODD, resulting in increased energy savings
  • Required Link Power Management – drives energy efficient power management across all SATA devices, reducing overall system power demand
  • Queued Trim Command – allows SATA SSDs to execute Trim without impacting normal operation, improving SSD performance
  • Hardware Control Features – enable host identification of device capabilities, allowing hosts to make more effective use of SATA devices


Serial ATA (SATA) is the primary internal storage interconnect for desktop and mobile PCs. It connects the host system to peripherals such as hard drives, solid state drives, optical drives, and removable magnetic media devices.

 

*New:  

  • mSATA, SATA for solid-state drives in mobile computing devices, a PCIe-like connector which is electrically SATA 
  • Zero-power optical disk drive, idle SATA optical drive draws no power
  • Queued Trim Command, improves solid-state drive performance
  • Required Link Power Management, reduces overall system power demand of several SATA devices
  • Hardware Control Features, enable host identification of device capabilities
  • Universal Storage Module, a new standard for cableless plug-in (slot) powered storage for consumer devices