# ExpressCard

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Specification for expansion and memory cards

ExpressCard Year created 2003 Supersedes PC Card No. of devices 1 per slot Speed 480 Mbit/s effective (USB 2 mode) 1.6 Gbit/s effective (PCIe 1 mode) 3.2 Gbit/s effective (PCIe 2 or USB 3 mode) Style Serial Hotplugging interface Yes External interface Yes

**ExpressCard**, initially called **NEWCARD**,[1] is an interface to connect [peripheral devices](/source/Peripheral) to a [computer](/source/Computer), usually a [laptop computer](/source/Laptop). The ExpressCard [technical standard](/source/Technical_standard) specifies the design of slots built into the computer and of [expansion cards](/source/Expansion_card) to insert in the slots. The cards contain [electronic circuits](/source/Electronic_circuit) and sometimes connectors for external devices. The ExpressCard standard replaces the [PC Card](/source/PC_Card) (also known as PCMCIA) standards.

ExpressCards can connect a variety of devices to a computer including [mobile broadband modems](/source/Mobile_broadband_modem) (sometimes called *connect cards*), [IEEE 1394](/source/IEEE_1394) (FireWire) connectors, [USB](/source/USB) connectors, [Ethernet](/source/Ethernet) network ports, [Serial ATA](/source/Serial_ATA) storage devices, [solid-state drives](/source/Solid-state_drive), external enclosures for desktop-size [PCI Express](/source/PCI_Express) [graphics cards](/source/Graphics_card) and other peripheral devices, [wireless network interface controllers](/source/Wireless_network_interface_controller) (NIC), [TV tuner cards](/source/TV_tuner_card), [Common Access Card](/source/Common_Access_Card) (CAC) readers, and [sound cards](/source/Sound_card).

## Standards

Originally developed by the [Personal Computer Memory Card International Association](/source/Personal_Computer_Memory_Card_International_Association) ([PCMCIA](/source/PCMCIA)), the ExpressCard standard is maintained by the [USB Implementers Forum](/source/USB_Implementers_Forum) ([USB-IF](/source/USB-IF)). The host device supports [PCI Express](/source/PCI_Express), [USB 2.0](/source/Universal_Serial_Bus) (including Hi-Speed), and [USB 3.0](/source/USB_3.0) (SuperSpeed)[2] (ExpressCard 2.0 only) connectivity through the ExpressCard slot; cards can be designed to use any of these modes. The cards are [hot-pluggable](/source/Hot_swapping). The ExpressCard standard is an [open standard](/source/Open_standard) by [ITU-T](/source/ITU-T) definition, and can be obtained from the USB-IF website free of charge.[3]

USB-IF administers the ExpressCard Compliance Program, under which companies earn the right to obtain a license to use the ExpressCard logo on their compliant products.[4]

## Form factors

ExpressCards compared to the predecessor [PC Card](/source/PC_Card)

The ExpressCard standard specifies two form factors, **ExpressCard/34** (34 millimetres (1.3 in) wide) and **ExpressCard/54** (54 mm (2.1 in) wide, in an L-shape)—the connector is the same on both (34 mm wide). Standard cards are 75 mm (3.0 in) long (10.6 mm (0.42 in) shorter than CardBus) and 5 mm (0.20 in) thick, but may be thicker on sections that extend outside the standard form for [antennas](/source/Antenna_(radio)), sockets, etc. With its 75 mm standard length, the ExpressCard will protrude 5 mm over the holder's surface (e.g. laptop surface), whereas a variant with 70 mm length remains level with the surface.

## Comparison to other standards

Cardbus to ExpressCard Adapter

The older PC Cards came in 16-bit and the later 32-bit [CardBus](/source/CardBus) designs. The major benefit of the ExpressCard over the PC card is more bandwidth, due to the ExpressCard's direct connection to the system bus over a PCI Express ×1 lane and USB 2.0, while CardBus cards only interface with PCI. The ExpressCard has a maximum throughput of 2.5 Gbit/s through PCI Express and 480 Mbit/s through USB 2.0 dedicated for each slot, while all CardBus and PCI devices connected to a computer usually share a total 1.06 Gbit/s bandwidth.

The ExpressCard standard specifies voltages of either 1.5 V or 3.3 V; CardBus slots can use 3.3 V or 5.0 V. The ExpressCard FAQ claims lower cost, better scalability, and better integration with motherboard chipset technology than Cardbus. PCMCIA devices can be connected to an ExpressCard slot via an adapter.

When the PC Card was introduced, the only other way to connect peripherals to a laptop computer was via [RS-232](/source/RS-232) and [parallel ports](/source/Parallel_port) of limited performance, so it was widely adopted for many peripherals. More recently, virtually all laptop equipment has 480 Mbit/s Hi-Speed [USB 2.0](/source/USB_2.0) ports, and most types of peripheral which formerly used a PC Card connection are available for USB or are built-in, making the ExpressCard less necessary than the PC Card was in its day. Many laptop computers do not have an ExpressCard slot.

## Availability

A mobile broadband modem integrated into ExpressCard 34

[Sound Blaster X-Fi](/source/Sound_Blaster_X-Fi) Xtreme Audio Notebook (ExpressCard/54)

An ExpressCard partially inserted in a laptop

A [FireWire](/source/FireWire) 800 ExpressCard

An ExpressCard slot was commonly included on high-end laptops from the mid 2000s to the early 2010s:

- [Hewlett-Packard](/source/Hewlett-Packard) began shipping systems with ExpressCard in November 2004.[5]

- [Lenovo](/source/Lenovo) integrated the slot into their flagship [ThinkPad](/source/ThinkPad) T43 in May 2005.[6]

- [Dell Computer](/source/Dell_Computer) also incorporates this in their Precision (the 17 in models have them exclusively, the 15 in Precisions have both express card and PCMCIA Card slots), Inspiron, Latitude (Latitude D-series have PCMCIA card slots. The D820/D830 have both ExpressCard and PCMCIA card slots. Latitude E-Series 6000 have ExpressCard|34 slots), Studio, Vostro and XPS Laptop product lines.[*[needs update](https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style/Dates_and_numbers#Chronological_items)*]

- [Fujitsu-Siemens](/source/Fujitsu-Siemens) began shipping systems[7][*[failed verification](https://en.wikipedia.org/wiki/Wikipedia:Verifiability)*] with ExpressCard in mid-2005.

- [Apple Inc.](/source/Apple_Inc.) included single ExpressCard/34 slots in every [MacBook Pro](/source/MacBook_Pro) notebook computer from January 2006 through June 2009. At the June 8, 2009 [Apple Worldwide Developers Conference](/source/Apple_Worldwide_Developers_Conference) the company announced that the 15-inch and 13-inch MacBook Pro models would replace the ExpressCard slot with a [Secure Digital card](/source/Secure_Digital_card) slot, while retaining the ExpressCard slot on the 17-inch model. In June 2012 Apple discontinued the 17-inch model and no further Macbooks have offered an ExpressCard slot.

- As of 2006[\[update\]](https://en.wikipedia.org/w/index.php?title=ExpressCard&action=edit), [ASUS](/source/ASUS) had also replaced the PC Card slot with an ExpressCard slot on many of its new models.

- [Sony](/source/Sony) also began shipping systems[8] with ExpressCard with its new laptop VGN-C, VGN-SZ, VGN-NS, VPC and FW product line.

- The [Acer Aspire](/source/Acer_Aspire) laptop series also had a single ExpressCard/54 slot on most new models.

- As of 2007[\[update\]](https://en.wikipedia.org/w/index.php?title=ExpressCard&action=edit), [Panasonic](/source/Panasonic) incorporated ExpressCard/54 slots in all the fully rugged and semi-rugged models of their [Toughbook](/source/Toughbook) brand of laptop computers.

- As of 2007[\[update\]](https://en.wikipedia.org/w/index.php?title=ExpressCard&action=edit), [Gateway](/source/Gateway%2C_Inc.) notebooks (ML3109 and later) also shipped with ExpressCard/54 interfaces.

Because of the lack of backward compatibility, some laptop manufacturers initially released models incorporating both CardBus (PCMCIA, [PC Card](/source/PC_Card)) and ExpressCard slots. These included certain models of [Acer Aspire](/source/Acer_Aspire), [Acer Extensa](/source/Acer_Extensa), [Toshiba Satellite](/source/Toshiba_Satellite), [Dell Latitude](/source/Dell_Latitude) and Precision, MSI S42x and Lenovo [ThinkPad Z60m](/source/ThinkPad_Z60m), R52, T60, R61 and T61.

In March 2005, the Personal Computer Memory Card International Association (PCMCIA) showed some of the first ExpressCard products at the CeBIT trade show in [Germany](/source/Germany).[9] A large number of ExpressCard devices were presented.[10][11][12][13][14][15][16][17][18][19][20][*[excessive citations](https://en.wikipedia.org/wiki/Wikipedia:Citing_sources#Bundling_citations)*]

In November 2006, [Belkin](/source/Belkin) announced that it was launching the first ExpressCard [docking station](/source/Docking_station), which uses the PCIe part of an ExpressCard connection to enable 1600x1200 video and the USB part to provide USB, audio and network ports.[21][22] This points to the ability for ExpressCard to allow more capable non-OEM docking stations for laptop computers.

In 2007, Sony introduced its Vaio TZ model, which incorporates ExpressCards. Also the Sony Vaio FZ and Vaio Z series have the ExpressCard/34 Slot integrated in them. Sony also uses the ExpressCard/34 form factor for the flash memory modules in its [XDCAM EX](/source/XDCAM_EX)/[SxS](/source/SxS) based [camcorders](/source/Camcorders), making the copying of video data between these cameras and ExpressCard-equipped laptops easier. For this reason, Sony also offers a USB-based SxS reader for desktop computers.

The [Toshiba Satellite](/source/Toshiba_Satellite) P and X 200/205 series of laptops and desktop replacements have an ExpressCard/34 slot since April 2007.[*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*] In P200 series it's a /54 size not /34.[23]

Ever since PCMCIA disbanded in 2009, newer laptops from 2010 on more commonly do not include ExpressCard slots except for some business-oriented models (e.g. some Lenovo models use it for supporting a smart card reader).[24] For WWAN connectivity cards, either mini-PCIe slots or USB connected variants have become the preferred connection methods. For external desktop graphics card enclosures and other peripherals that interface with PCI Express, [Thunderbolt](/source/Thunderbolt_(interface)) has supplanted ExpressCard in that role due to its faster speed and ability to use multiple PCIe 2.0 lanes; the first and second Thunderbolt revisions offered 20 Gbit/s of maximum bandwidth with four PCIe 2.0 lanes while ExpressCard could only muster 5 Gbit/s maximum with one PCIe 2.0 lane.[25][26]

## ExpressCard 2.0

The ExpressCard 2.0 standard was introduced on March 4, 2009, at CeBIT in Hannover. It provides a single [PCIe 1.0](/source/PCI_Express) 2.5 GT/s lane (optionally PCIe 2.0 with 5 GT/s) and a USB 3.0 "SuperSpeed" link with a raw transfer speed of 5 Gbit/s (effective transfer speed up to 400 MB/s).[27][28] It is forward and backward compatible with earlier ExpressCard modules and slots. USB 3.0 SuperSpeed compatibility is achieved by sharing the pins with the PCIe link. An inserted card signals which mode should be used.[29]

The standard failed to gain widespread use and some Taiwanese manufacturers discontinued it as early as 2011.[30][31] After the dissolution of the PCMCIA in 2010, the specification, associated documentation and licensing responsibilities were moved to the [USB Implementers Forum](/source/USB_Implementers_Forum). The specifications were last revised in 2009, and removed from their website in 2018.[32]

## See also

- [List of interface bit rates](/source/List_of_interface_bit_rates)

## References

1. **[^](#cite_ref-1)** ["NEWCARD Reborn As 'ExpressCard'"](https://web.archive.org/web/20081120094334/http://www.wi-fiplanet.com/news/article.php/3077821). Archived from [the original](http://www.wi-fiplanet.com/news/article.php/3077821) on 2008-11-20. Retrieved 2009-02-25.

1. **[^](#cite_ref-2)** ["ExpressCard"](https://web.archive.org/web/20140625130909/http://www.usb.org/developers/expresscard/). USB.org. Archived from [the original](http://www.usb.org/developers/expresscard) on 2014-06-25. Retrieved 2013-05-09.

1. **[^](#cite_ref-3)** ["ExpressCard_specs"](https://web.archive.org/web/20140814032847/http://www.usb.org/developers/expresscard/EC_specifications). USB.org. Archived from [the original](http://www.usb.org/developers/expresscard/EC_specifications) on 2014-08-14. Retrieved 2013-05-09.

1. **[^](#cite_ref-4)** ["ExpressCard Compliance"](https://web.archive.org/web/20130602171618/http://www.usb.org/developers/expresscard/expresscard_compliance/). USB.org. Archived from [the original](http://www.usb.org/developers/expresscard/expresscard_compliance) on 2013-06-02. Retrieved 2013-05-09.

1. **[^](#cite_ref-5)** Cheng, Cisco. ["HP Pavilion zd8000 (Iss. 21 2004)"](https://web.archive.org/web/20090430094203/http://www.pcmag.com/article2/0,1759,1706542,00.asp). *PC Magazine*. Archived from [the original](https://www.pcmag.com/article2/0,1759,1706542,00.asp) on 2009-04-30. Retrieved 2017-08-27.

1. **[^](#cite_ref-6)** ["Lenovo - ThinkPad T Series Popular Models page - United States"](https://web.archive.org/web/20060209104154/http://www-131.ibm.com/webapp/wcs/stores/servlet/CategoryDisplay?catalogId=-840&storeId=10000001&langId=-1&dualCurrId=1000073&categoryId=2072541). Archived from [the original](http://www-131.ibm.com/webapp/wcs/stores/servlet/CategoryDisplay?catalogId=-840&storeId=10000001&langId=-1&dualCurrId=1000073&categoryId=2072541) on 2006-02-09. Retrieved 2006-02-09.

1. **[^](#cite_ref-7)** ["AMILO M3438-4438"](https://web.archive.org/web/20070427100146/http://www.fujitsu-siemens.com/home/products/notebooks/amilo_m_3438_4438.html). *fujitsu-siemens.com*. Archived from [the original](http://www.fujitsu-siemens.com/home/products/notebooks/amilo_m_3438_4438.html) on April 27, 2007.

1. **[^](#cite_ref-8)** ["Sony Online Store - Sony Laptops, Computers, TVs, Cameras, Camcorders, Walkman MP3 Players and more"](https://web.archive.org/web/20060405044615/http://www.sonystyle.com/is-bin/INTERSHOP.enfinity/eCS/Store/en/-/USD/SY_BrowseCatalog-Start%3FCategoryName%3Dcpu_VAIONotebookComputers_SZSeries%26Dept%3Dcomputers). Sonystyle.com. Archived from [the original](http://www.sonystyle.com/is-bin/INTERSHOP.enfinity/eCS/Store/en/-/USD/SY_BrowseCatalog-Start?CategoryName=cpu_VAIONotebookComputers_SZSeries&Dept=computers) on April 5, 2006. Retrieved 2013-05-09.

1. **[^](#cite_ref-9)** ["CeBIT : Faster ExpressCards on tap for PC expansion media"](https://web.archive.org/web/20140827035957/http://www.itworldcanada.com/article/cebit-faster-expresscards-on-tap-for-pc-expansion-media/12010#ixzz32rR0GzTH). Archived from the original on August 27, 2014.

1. **[^](#cite_ref-10)** ["XGI at CeBIT 2005 Hanover Computer Fair!"](http://volarigamers.com/xgi-at-cebit-2005-hanover-computer-fair).

1. **[^](#cite_ref-11)** ["Trade Show Information"](http://www.ioi.com.tw/show.aspx).

1. **[^](#cite_ref-12)** ["XGI A Shining Spotlight at CeBIT 2005 Hanover Computer Fair!"](http://www.hartware.de/press_3025.html).

1. **[^](#cite_ref-13)** ["TechPowerUp CeBIT 2005 - Day 1"](http://www.techpowerup.com/mobile/reviews/Cebit2005/Day1/1.html).

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1. **[^](#cite_ref-16)** ["SiS to show new products at CeBIT 2005"](http://www.sis.com/news_room/news.aspx?m=22&region=en-global&rsn=1276).{{[cite news](https://en.wikipedia.org/wiki/Template:Cite_news)}}: CS1 maint: deprecated archival service ([link](https://en.wikipedia.org/wiki/Category:CS1_maint:_deprecated_archival_service))

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1. **[^](#cite_ref-19)** ["CeBIT Hannover 2005 (Part 1) New Motherboards at ECS"](https://www.hardwarezone.com/articles/view.php?id=1474&pg=3).

1. **[^](#cite_ref-20)** ["New ATI and SiS Chipsets, NEC Dual-Layer DVD, More ATI news from CeBIT 2005"](https://hothardware.com/m/News/New-ATI-and-SiS-Chipsets-NEC-DualLayer-DVD-More-ATI-news-from-CeBIT-2005/default.aspx).

1. **[^](#cite_ref-21)** ["Press Room | Belkin USA Site"](https://web.archive.org/web/20071012172303/http://belkin.com/pressroom/releases/uploads/10_10_06NotebookExpansionDock.html). Belkin.com. Archived from [the original](http://www.belkin.com/pressroom/releases/uploads/10_10_06NotebookExpansionDock.html) on 2007-10-12. Retrieved 2013-05-09.

1. **[^](#cite_ref-22)** ["Belkin : High Speed Docking Station"](https://web.archive.org/web/20070305201728/http://www.belkin.com/highspeeddock/). Archived from [the original](http://www.belkin.com/highspeeddock/) on 2007-03-05. Retrieved 2007-03-09.

1. **[^](#cite_ref-23)** ["Manuals - Dynabook"](https://web.archive.org/web/20130829103442/http://www.toshiba.co.uk/innovation/download_manuals.jsp?service=UK). Archived from [the original](http://www.toshiba.co.uk/innovation/download_manuals.jsp?service=UK) on 2013-08-29. Retrieved 2014-08-25.

1. **[^](#cite_ref-24)** Piltch, Avram (2016-09-26). ["13 Disappearing Laptop Ports and How to Get Them Back"](https://www.laptopmag.com/articles/get-back-defunct-ports). *LaptopMag*. Retrieved 2020-05-22.

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1. **[^](#cite_ref-26)** ["Expresscard 2.0 eGPUs - pros, cons and candidate notebooks"](https://egpu.io/expresscard-2-0-egpu-interface-pros-cons-candidate-notebook-list/). *eGPU.io*. 2017-02-18. Retrieved 2020-05-22.

1. **[^](#cite_ref-faq3_27-0)** ["PCI Express 3.0 Frequently Asked Questions"](https://web.archive.org/web/20140201172536/http://www.pcisig.com/news_room/faqs/pcie3.0_faq/). PCI-SIG. Archived from [the original](http://www.pcisig.com/news_room/faqs/pcie3.0_faq/) on 1 February 2014. Retrieved 18 February 2010.

1. **[^](#cite_ref-28)** [ExpressCard 2.0 FAQ](http://www.expresscard.org/files/CeBIT09-FAQ.pdf) [Archived](https://web.archive.org/web/20091229193114/http://www.expresscard.org/files/CeBIT09-FAQ.pdf) 2009-12-29 at the [Wayback Machine](/source/Wayback_Machine) (pdf) at ExpressCard.org, accessed 2009-12-04.

1. **[^](#cite_ref-ExpressCard_2.0_Standard_29-0)** ["ExpressCard 2.0 Standard at usb.org"](https://web.archive.org/web/20180826144732/http://www.usb.org/developers/expresscard). Archived from [the original](http://www.usb.org/developers/expresscard/EC_specifications/ExpressCard_2_0_FINAL.pdf) (PDF) on 2018-08-26. Retrieved 2012-12-09.

1. **[^](#cite_ref-30)** ["ExpressCard 2.0"](https://web.archive.org/web/20090306125601/http://www.expresscard.org/web/site/cebit2009.jsp). Archived from [the original](http://www.expresscard.org/web/site/cebit2009.jsp) on March 6, 2009.

1. **[^](#cite_ref-31)** ["ExpressCard Format to be Discontinued"](https://www.itproportal.com/2011/04/01/expresscard-format-be-discontinued/). April 2011.

1. **[^](#cite_ref-32)** ["USB.org - ExpressCard_specs"](https://web.archive.org/web/20180317012632/http://www.usb.org/developers/expresscard/EC_specifications). *www.usb.org*. Archived from [the original](http://www.usb.org/developers/expresscard/EC_specifications) on 17 March 2018. Retrieved 11 January 2022.

## External links

- [Official website](https://web.archive.org/web/20060204090659/http://www.expresscard.org/web/site/) at the [Wayback Machine](/source/Wayback_Machine) (archived 2006-02-04)

v t e Memory cards Main articles Memory card reader Comparison of memory cards Types CompactFlash (CF, CFast, CFexpress) Express Card JEIDA MultiMediaCard (MMC) Memory Stick (MS, MS-PRO, MS-PRO HG, MS-XC) miCard Microdrive (MD) MiniCard Nano Memory (NM) P2 (MicroP2) PC Card (PCMCIA, CardBus, CardBay) Secure Digital (SDSC, SDHC, SDXC) SmartMedia (SM) SxS Universal Flash Storage (UFS) xD-Picture XQD

v t e Technical and de facto standards for wired computer buses General System bus Front-side bus Back-side bus Daisy chain Control bus Address bus Bus contention Bus mastering Network on a chip Plug and play Double data rate Quad data rate List of bus bandwidths Standards SS-50 bus S-100 bus Multibus Unibus VAXBI MBus STD Bus SMBus Q-Bus Europe Card Bus ISA STEbus Zorro II Zorro III CAMAC FASTBUS LPC HP Precision Bus EISA VME VXI VXS VPX NuBus TURBOchannel MCA SBus VLB HP GSC bus InfiniBand Ethernet UPA PCI PCI Extended (PCI-X) PXI PCI Express (PCIe) AGP Compute Express Link (CXL) Direct Media Interface (DMI) RapidIO Intel QuickPath Interconnect NVLink HyperTransport Infinity Fabric Intel Ultra Path Interconnect Coherent Accelerator Processor Interface (CAPI) SpaceWire Storage ST-506 ESDI SDI IPI SMD Floppy connector Parallel ATA (PATA) Bus and Tag DSSI HIPPI Serial ATA (SATA) SCSI Parallel SAS ESCON Fibre Channel SSA SATAe PCI Express (via AHCI or NVMe logical device interface) Peripheral Apple Desktop Bus Atari SIO DCB Commodore bus HP-IL HIL MIDI RS-232 RS-422 RS-423 RS-485 Lightning DMX512-A IEEE-488 (GPIB) IEEE-1284 (parallel port) IEEE-1394 (FireWire) UNI/O 1-Wire I²C (ACCESS.bus, PMBus, SMBus) I3C SPI D²B Parallel SCSI Profibus USB Camera Link External PCIe Thunderbolt CAN bus Audio ADAT Lightpipe AES3 Intel HD Audio I2S MADI McASP S/PDIF TOSLINK Portable PC Card ExpressCard Embedded Multidrop bus CoreConnect AMBA (AXI) Wishbone SLIMbus Interfaces are listed by their speed in the (roughly) ascending order, so the interface at the end of each section should be the fastest. Category

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Adapted from the Wikipedia article [ExpressCard](https://en.wikipedia.org/wiki/ExpressCard) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/ExpressCard?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.