Editing SATA (section)

=== Comparison with other buses ===
{{See also|List of device bit rates#Storage|l1=List of device bit rates}}

SCSI-3 devices with SCA-2 connectors are designed for hot swapping. Many server and RAID systems provide hardware support for transparent hot swapping. The designers of the SCSI standard prior to SCA-2 connectors did not target hot swapping, but in practice, most RAID implementations support hot swapping of hard disks.

<!-- Please do not change the Transfer speed MB/s entries, especially for SATA. The protocol uses a 10 symbol/8 bit encoding scheme that means 10 bits translate to one full byte of data. Therefore SATA 3.0 translates 6000 bits in symbols to 600 bytes of data. -->
{| class="wikitable sortable"
|-
! Name
! [[Bit rate#Gross bit rate|Raw data rate]]
! data-sort-type="number" | [[Bit rate#Information rate|Data rate]]
! Maximum cable length
! Power provided
! Devices per channel
|-
| [[#eSATA|eSATA]]
|data-sort-value="6" | 6&nbsp;Gbit/s
|data-sort-value="600" | 600&nbsp;MB/s
|rowspan="2" | {{plainlist|
* 2&nbsp;m
* 1&nbsp;m with passive SATA adapter
}}
|No
| rowspan="5" | 1 (15 with a [[port multiplier]])
|-
| [[eSATAp]]
|data-sort-value="6" | 6&nbsp;Gbit/s
|data-sort-value="600" | 600&nbsp;MB/s
|Yes|5&nbsp;V, and, optionally, 12&nbsp;V<ref>{{cite web |url=http://www.delock.de/mail/esatap/esatap.html |title=eSATAp Application |website=delock.de |access-date=2010-01-26 |url-status=live |archive-url=https://web.archive.org/web/20120315211713/http://www.delock.de/mail/esatap/esatap.html |archive-date=2012-03-15 }}</ref>
|-
| [[SATA Express]]
|data-sort-value="16" | 16&nbsp;Gbit/s
|data-sort-value="1969" | 1.97&nbsp;GB/s{{Efn|16&nbsp;Gbit/s raw bit rate, with [[128b/130b]] encoding}}
| rowspan="4" | 1&nbsp;m
| rowspan="4" | No
|-
| [[#3.0|SATA revision 3.0]]
|data-sort-value="6" | 6&nbsp;Gbit/s
|data-sort-value="600" | 600&nbsp;MB/s<ref>{{cite web |url=http://www.sata-io.org/documents/SATA-6Gbs-Fast-Just-Got-Faster.pdf |archive-url=https://web.archive.org/web/20121126012320/https://sata-io.org/documents/SATA-6Gbs-Fast-Just-Got-Faster.pdf |title=Fast Just Got Faster: SATA 6Gbit/s |website=sata-io.org |date=May 27, 2009 |access-date=2011-10-25 |archive-date=November 26, 2012 }}</ref>
|-
| [[#2.0|SATA revision 2.0]]
|data-sort-value="3" | 3&nbsp;Gbit/s
|data-sort-value="300" | 300&nbsp;MB/s
|-
| [[#1.0|SATA revision 1.0]]
|data-sort-value="1.5" | 1.5&nbsp;Gbit/s
|data-sort-value="150" | 150&nbsp;MB/s<ref>{{cite web|url=https://sata-io.org/sites/default/files/images/SATA-IO-English-Brochure-May-2009.pdf |title=Designing Serial ATA For Today's Applications and Tomorrow's Storage Needs |website=sata-io.org |access-date=2011-10-25 |url-status=live |archive-url=https://web.archive.org/web/20111101171659/https://www.sata-io.org/documents/SATA-IO-English-Brochure-May-2009.pdf |archive-date=2011-11-01 }}</ref>
|1
|-
| [[Parallel ATA|PATA (IDE)]] 133
|data-sort-value="1.067" | 1.064&nbsp;Gbit/s
|data-sort-value="133.3" | 133.3&nbsp;MB/s{{Efn|15&nbsp;ns cycles, 16-bit transfers}}
|0.46&nbsp;m (18&nbsp;in)
| Partial|5 V (only 2.5-inch drive 44-pin connector)
|2
|-
| [[Serial Attached SCSI|SAS-4]]
|data-sort-value="22.5" | 22.5&nbsp;Gbit/s
|data-sort-value="2250" | 2.25&nbsp;GB/s
| rowspan="4" | 10&nbsp;m
| rowspan="4" Partial|Backplane connectors only
| rowspan="4" | 1 (> 65k with expanders)
|-
| [[Serial Attached SCSI|SAS-3]]
|data-sort-value="12" | 12&nbsp;Gbit/s
|data-sort-value="1200" | 1.2&nbsp;GB/s
|-
| [[Serial Attached SCSI|SAS-2]]
|data-sort-value="6" | 6&nbsp;Gbit/s
|data-sort-value="600" | 600&nbsp;MB/s
|-
| [[Serial Attached SCSI|SAS-1]]
|data-sort-value="3" | 3&nbsp;Gbit/s
|data-sort-value="300" | 300&nbsp;MB/s
|-
| [[IEEE 1394|IEEE 1394 (FireWire)]] 800
|data-sort-value="{{#expr:786/1024}}" | 786&nbsp;Mbit/s
|data-sort-value="98.25" | 98.25&nbsp;MB/s
|100&nbsp;m<ref name="Apple-FW-dev-notes">{{cite web |url=http://developer.apple.com/documentation/HardwareDrivers/Conceptual/HWTech_FireWire/Articles/FireW_concepts.html |title=FireWire Developer Note: FireWire Concepts |publisher=Apple Developer Connection |access-date=2009-07-13 |archive-url=https://web.archive.org/web/20081010172926/http://developer.apple.com/documentation/HardwareDrivers/Conceptual/HWTech_FireWire/Articles/FireW_concepts.html |archive-date=10 October 2008 |url-status=dead}}</ref>
| rowspan="2" Yes|15&nbsp;W, 12–25&nbsp;V
| rowspan="2" | 63 (with a hub)
|-
|-
| [[IEEE 1394|IEEE 1394 (FireWire)]] 400
|data-sort-value="{{#expr:393/1024}}" | 393&nbsp;Mbit/s
|data-sort-value="49.13" | 49.13&nbsp;MB/s
|4.5&nbsp;m<ref name="Apple-FW-dev-notes" /><ref name="16 cables">16 cables can be daisy chained up to 72&nbsp;m</ref>
|-
| [[Universal Serial Bus|USB]] 3.2 (Generation 2x2)
|data-sort-value="20" | 20&nbsp;Gbit/s
|data-sort-value="2440" | 2.44&nbsp;GB/s{{Efn|20&nbsp;Gbit/s raw bit rate, with [[128b/132b]] encoding}}
| 1 m (Passive cable USB-IF Standard)
|Yes 100&nbsp;W, 5, 12 or 20&nbsp;V<ref name="Howse">{{Cite web|first=Brett|last=Howse|url=http://www.anandtech.com/show/8539/usb-power-delivery-v20-and-billboard-device-class-v10-specifications-finalized|title=USB Power Delivery v2.0 Specification Finalized - USB Gains Alternate Modes|publisher=AnandTech|date=September 17, 2014|access-date=2015-01-15|url-status=live|archive-url=https://web.archive.org/web/20150124194624/http://www.anandtech.com/show/8539/usb-power-delivery-v20-and-billboard-device-class-v10-specifications-finalized|archive-date=January 24, 2015}}</ref>
|127 (with a hub)<ref name="USB_3_Quickie_Intro">{{cite web|url=http://electronicdesign.com/article/test-and-measurement/usb-3-0-protocol-analyzer-jumpstarts-4-8-gbit-s-i-|title=USB 3.0 Protocol Analyzer Jumpstarts 4.8-Gbit/s I/O Projects|last=Frenzel|first=Louis E.|date=September 25, 2008|publisher=Electronic Design|archive-url=https://web.archive.org/web/20120503115304/http://electronicdesign.com/article/test-and-measurement/usb-3-0-protocol-analyzer-jumpstarts-4-8-gbit-s-i-|archive-date=May 3, 2012|url-status=dead|access-date=2009-07-03}}</ref>
|-
| [[Universal Serial Bus|USB]] 3.1 (Generation 2)
|data-sort-value="10" | 10&nbsp;Gbit/s
|data-sort-value="1212" | 1.22&nbsp;GB/s{{Efn|10&nbsp;Gbit/s raw bit rate, with [[128b/132b]] encoding}}
| 1 m (Passive cable USB-IF Standard)
|Yes|100&nbsp;W, 5, 12 or 20&nbsp;V<ref name="Howse"/>
| rowspan="4" | 127 (with a hub)<ref name="USB_3_Quickie_Intro"/>
|-
| [[Universal Serial Bus|USB]] 3.0{{Efn|[[Universal Serial Bus|USB]]&nbsp;3.0 specification was released to hardware vendors on 17 November 2008.}} (USB 3.2, Generation 1)
|data-sort-value="5" | 5&nbsp;Gbit/s
|data-sort-value="610" | 610&nbsp;MB/s or more ({{abbr|excl.|excluding}} protocol <br />overhead, flow control, and framing)<!-- uses 8B10B encoding --><ref>
{{cite book
 | title=Universal Serial Bus Specification Revision 3.0
 | page=75 (4–4.11)
 | url=http://www.usb.org/developers/docs/usb_30_spec_122012.zip
 | archive-url=https://web.archive.org/web/20110514223430/http://www.usb.org/developers/docs/usb_30_spec_020411d.zip
 | archive-date=2011-05-14
 | date=20 December 2012
 | access-date=14 April 2011
 }}</ref>
|2 m (Passive cable USB-IF Standard)
|Yes|4.5&nbsp;W, 5&nbsp;V
|-
| [[Universal Serial Bus|USB]] 2.0
|data-sort-value="{{#expr:480/1000}}" | 480&nbsp;Mbit/s
|data-sort-value="58" | 58&nbsp;MB/s<!-- 8 bits/byte, NRZI encoding with bit-stuffing -->
|5&nbsp;m{{Efn|name="USB"|reference=USB hubs can be daisy chained up to 25&nbsp;m}}
|Yes|2.5&nbsp;W, 5&nbsp;V
|-
| [[Universal Serial Bus|USB]] 1.1
|data-sort-value="{{#expr:12/1000}}" | 12&nbsp;Mbit/s
|data-sort-value="1.5" | 1.5&nbsp;MB/s
|3&nbsp;m
|Yes
|-
| [[SCSI]] Ultra-320
|data-sort-value="2.56" | 2.56&nbsp;Gbit/s
|data-sort-value="320" | 320&nbsp;MB/s
|12&nbsp;m
| Partial|Only with [[Single Connector Attachment|SCA Backplane]]
|15 {{abbr|excl.|excluding}} host bus adapter/host
|-
| 10GFC [[Fibre Channel]]
|data-sort-value="10.52" | 10.52&nbsp;Gbit/s
|data-sort-value="1195" | 1.195&nbsp;GB/s
|2&nbsp;m&nbsp;– 50&nbsp;km
| rowspan="3" | No
| rowspan="2" | 126 (16,777,216 with switches)
|-
| 4GFC [[Fibre Channel]]
|data-sort-value="4" | 4.25&nbsp;Gbit/s
|data-sort-value="398" | 398&nbsp;MB/s
|12&nbsp;m
|-
| [[InfiniBand]]<br />Quad Rate
|data-sort-value="10" | 10&nbsp;Gbit/s
|data-sort-value="{{#expr:0.98*1024}}" | 0.98&nbsp;GB/s
| {{plainlist|
*5&nbsp;m&nbsp;(copper)<ref>{{cite web|url=http://download.intel.com/design/network/products/optical/cables/ornl.pdf |archive-url=https://web.archive.org/web/20080315111431/http://download.intel.com/design/network/products/optical/cables/ornl.pdf |archive-date=15 March 2008 |title=Infiniband Based Cable Comparison |access-date=11 February 2008 |last=Minich |first=Makia |date=25 June 2007 |url-status=dead }}</ref><ref>{{Cite news | first=Michael | last=Feldman | title=Optical Cables Light Up InfiniBand | date=17 July 2007 | publisher=Tabor Publications & Events | url=http://archive.hpcwire.com/hpc/1729056.html | work=HPCwire | page=1 | access-date=2008-02-11 | url-status=dead | archive-url=https://web.archive.org/web/20120329103925/http://archive.hpcwire.com/hpc/1729056.html | archive-date=29 March 2012 }}</ref>
*&lt;10&nbsp;km&nbsp;(fiber)
}}
|1 with [[Point-to-point (telecommunications)|point-to-point]], many with [[switched fabric]]
|-
| [[Thunderbolt (interface)|Thunderbolt]]
|data-sort-value="10" | 10&nbsp;Gbit/s
|data-sort-value="{{#expr:1.22*1024}}" | 1.22&nbsp;GB/s
| rowspan="3" | {{plainlist|
* 3&nbsp;m&nbsp;(copper)
* 100&nbsp;m&nbsp;(fiber)
}}
| rowspan="2" Partial|10&nbsp;W (only copper)
| rowspan="3" | 7
|-
| [[Thunderbolt 2]]
|data-sort-value="20" | 20&nbsp;Gbit/s
|data-sort-value="{{#expr:2.44*1024}}" | 2.44&nbsp;GB/s
|-
| [[Thunderbolt 3]]
|data-sort-value="40" | 40&nbsp;Gbit/s
|data-sort-value="{{#expr:4.88*1024}}" | 4.88&nbsp;GB/s
|Partial|100&nbsp;W (only copper)
|}