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The third-generation expansion interface from the USB Implementers Forum ( Introduced in 2003 by the Personal Computer Memory Card International Association (PCMCIA), the ExpressCard was a plug-in module that superseded the PC Card standard for adding functionality to laptops. ExpressCard boosted the data rate from 132 to 342 Mbytes/sec. It supported USB 2.0 and single lane PCI Express simultaneously (see USB and PCI Express).

Smaller than PC Cards
ExpressCards were 11mm shorter than PC Cards and came in two widths: 54mm and 34mm. ExpressCard 54mm slots accommodated both sizes.

An Almost-Internal USB Solution
The ExpressCard eliminated the need to carry an external USB storage device and cable. For example, a hard drive or flash drive could remain within the laptop when traveling, with only a small protrusion jutting out from the side. See PC Card.

The two leftmost ExpressCards are 54mm modules, while the other four are 34mm modules. (Image courtesy of Personal Computer Memory Card International Association.)

Two ExpressCard Sizes
The same 5mm thickness as Type II PC Cards, but 11mm shorter, ExpressCards came in two widths (see PC Card). (Image courtesy of Personal Computer Memory Card International Association.)
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They are connected to your mobile gadget using an available USB port, PCMCIA card slot or ExpressCard slot.
The hardware design also comes with the following input slots and options; IEEE 1394a (4-pin) port, Integrated Gigabit Ethernet RJ-45 (1000Mbps), 3 Hi-speed USB 2.0 ports (1 via USB 2.0 / eSATA combo port), 1eSATA (via USB 2.0/ eSATA Combo Port), VGA, Display Port-Video Output, 8-in-1 Media Card Reader, ExpressCard Slot, 2 Audio Out Connectors, Audio In/ Microphone Jack (retaskable for 5.1 audio), and Two Built-In Front Speakers.
(Laptops with an ExpressCard slot will require an adapter.) The necessary client software component is the Wireless Client Encryption, which is available only through NMCI.
The AirCard 503 data card is a convertible 2-in-1 card that fits both PC card and ExpressCard slots for compatibility with a wide range of notebook computers.
The mobile terminal will also support the ExpressCard standard, the latest in PC card interfaces, making it possible for the mobile terminal to be installed in a variety of products, such as notebook PCs and netbooks, for high-speed communications in mobile environments.
(A small consolation in the VAIO's case is that an ExpressCard reader allows for laptop-style add-ons.) Apple's iMacs allow you to upgrade the RAM easily, but anything else involves a 21-screw ordeal.
It has Intel® Core™2 Duo processor, with an optional dedicated ATI Mobility Radeon™ HD 4570 graphics card, a Wi-Fi a/b/g/n, a 400GB hard-drive and up to 4GB of DDR2 memory and has an ExpressCard slot, SD and Memory Stick card slots.
Each MacBook Pro includes an LED-backlit display with greater color intensity, the innovative glass Multi-Touchao trackpad, an illuminated keyboard, an SD card or ExpressCard slot, a FireWireA 800 port and state of the art NVIDIA graphics.
Designed for notebook computers, AirCard 501 and AirCard 502 ExpressCard modems offer top download speeds of up to 7.2 Mbps and upload speeds of up to 5.76 Mbps.
The Gatekeeper Card Pro for Mac is inserted directly into the MacBook's ExpressCard slot and provides 12 security applications.
Yoggie will also be exhibiting at CES (stand IP203) where it will be highlighting the Yoggie HyPC(TM): a miniature 'hybrid' computer in the form of an ExpressCard that slides into your laptop to provide the most secure web browsing available to consumers today.
With a webcam, WiFi and wired networking Co but not a dial-up modem Co two USB ports, Bluetooth wireless to connect peripherals, a secure digital card slot to add memory, and an ExpressCard slot for such capabilities as cellular data service, the Mini-Note also has most of the options youCOd find on a much larger, pricier PC.