Editing SATA (section)

=== SATA revision 2.0 (3&nbsp;Gbit/s, 300&nbsp;MB/s, Serial ATA-300) <span class="anchor" id="2.0"></span> ===
[[File:SATA2.jpg|thumb|SATA 2 connectors on a computer motherboard, all but two with cables plugged in. Note that there is no visible difference, other than the labeling, between SATA 1, SATA 2, and SATA 3 cables and connectors.]]
SATA revision 2.0 was released in April 2004, introducing Native Command Queuing (NCQ). It is [[backward compatible]] with SATA 1.5&nbsp;Gbit/s.<ref name="SATA-IO website">{{cite web |url=http://www.sata-io.org/developers/naming_guidelines.asp |title=SATA-IO Specifications and Naming Conventions |website=sata-io.org |access-date=2012-08-30 |url-status=live |archive-url=https://web.archive.org/web/20120829113659/http://www.sata-io.org/developers/naming_guidelines.asp |archive-date=2012-08-29 }}</ref>

Second-generation SATA interfaces run with a native transfer rate of 3.0&nbsp;Gbit/s that, when accounted for the [[8b/10b encoding]] scheme, equals to the maximum uncoded transfer rate of 2.4&nbsp;Gbit/s (300&nbsp;MB/s). The theoretical burst throughput of the SATA revision 2.0, which is also known as the SATA 3&nbsp;Gbit/s, doubles the throughput of SATA revision 1.0.

All SATA data cables meeting the SATA spec are rated for 3.0&nbsp;Gbit/s and handle modern mechanical drives without any loss of sustained and burst data transfer performance. However, high-performance flash-based drives can exceed the SATA 3&nbsp;Gbit/s transfer rate; this is addressed with the SATA 6&nbsp;Gbit/s interoperability standard.

==== SATA revision 2.5 <span class="anchor" id="2.5"></span> ====
Announced in August 2005, SATA revision 2.5 consolidated the specification to a single document.<ref>{{cite web |url=https://sata-io.org/system/files/member-downloads/SATA-IOCompletesSATARevision2.5IntegratedSpec.pdf |title=SATA-IO COMPLETES SATA REVISION 2.5 INTEGRATED SPEC |access-date=2017-11-10 |url-status=live |archive-url=https://web.archive.org/web/20150316122649/https://www.sata-io.org/system/files/member-downloads/SATA-IOCompletesSATARevision2.5IntegratedSpec.pdf |archive-date=2015-03-16 }}</ref><ref>{{cite press release|url=http://www.businesswire.com/news/home/20050823005355/en/SATA-IO-Completes-SATA-Revision-2.5-Integrated-Spec|title=SATA-IO Completes SATA Revision 2.5 Integrated Spec; Slimline Connector Spec and Interoperability Program Plans Also Released|website=www.businesswire.com|url-status=live|archive-url=https://web.archive.org/web/20171110114621/http://www.businesswire.com/news/home/20050823005355/en/SATA-IO-Completes-SATA-Revision-2.5-Integrated-Spec|archive-date=2017-11-10}}</ref>

==== SATA revision 2.6 <span class="anchor" id="2.6"></span> ====
Announced in February 2007, SATA revision 2.6 introduced the following features:<ref name="sata26">{{cite web |title=Serial ATA Revision 2.6 |url=http://read.pudn.com/downloads157/doc/project/697017/SerialATA_Revision_2_6_Gold.pdf |url-status=live |archive-url=https://web.archive.org/web/20141006104140/http://read.pudn.com/downloads157/doc/project/697017/SerialATA_Revision_2_6_Gold.pdf |archive-date=2014-10-06 |publisher=Serial ATA International Organization |page=115}}</ref>
* Slimline connector
* [[#Micro connector|Micro connector (initially for 1.8” HDD)]]
* Mini Internal Multilane cable and connector
* Mini External Multilane cable and connector
* NCQ Priority
* NCQ Unload
* Enhancements to the BIST Activate FIS
* Enhancements for robust reception of the Signature FIS