Editing Native Command Queuing (section)

== Solid-state drives ==
NCQ is also used in newer [[solid-state drive]]s where the drive encounters latency on the host, rather than the other way around. For example, [[Intel]]'s X25-E Extreme solid-state drive uses NCQ to ensure that the drive has commands to process while the host system is busy processing CPU tasks.<ref name="TechRep SSD NCQ">{{cite web|url=http://techreport.com/articles.x/15931/1|title=Intel's X25-E Extreme solid-state drive - Now with single-level cell flash memory|first=Geoff|last=Gasior|publisher=[[Tech Report]]|date=November 23, 2008}}</ref>

NCQ also enables the SSD controller to complete commands concurrently (or partly concurrently, for example using pipelines) where the internal organisation of the device enables such processing.

The [[NVM Express]] (NVMe) standard also supports command queuing, in a form optimized for SSDs.<ref name="ahci-nvme">{{cite web
 | url = https://www.sata-io.org/sites/default/files/documents/NVMe%20and%20AHCI%20as%20SATA%20Express%20Interface%20Options%20-%20Whitepaper_.pdf
 | title = AHCI and NVMe as Interfaces for SATA Express Devices – Overview 
 | date = 2013-08-09 | access-date = 2013-10-02
 | author = Dave Landsman | publisher = [[SATA-IO]]
 }}</ref>  NVMe allows multiple queues for a single controller and device, allowing at the same time much higher depths for each queue, which more closely matches how the underlying SSD hardware works.<ref>{{cite web|url=http://www.nvmexpress.org/about/nvm-express-overview/ |title=NVM Express Overview |website=nvmexpress.org |access-date=2014-11-26}}</ref>