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Module Usb
Xbee Adapter (USB, Xbee Module)
5 Differences between ExpressCard USB Adapter and PC Card
PC Card is a kind of used to computers and other communications and electronic equipment, such as adding memory, mass storage, networking and wireless communication devices such as expansion of technology. Almost 100% of notebook computers in its I / O expansion slot using the PC card technology. However, as users demand more bandwidth and flexibility, PC cards can no longer meet the requirements; a new ExpressCard USB Adapter technology will replace the traditional PC Card.
With the traditional PC Card technology, the biggest difference is that, ExpressCard technology uses the latest PCI Express and USB 2.0 interfaces, the external device and directly between the host system to provide hot-pluggable connections, without the need for the system chipset and socket set up a bridge between the chips.
ExpressCard technology is the PCMCIA Association by the spring of 2003 announced new technical standards. The standard by a large number of PCMCIA member companies formed the joint development, including software giants Microsoft, PC makers Dell, Hewlett-Packard and IBM; chip maker Intel, SMSC, Qualcomm, and TI; module manufacturers Hitachi, Lexar Madia, and SCM, etc.; Hardware manufacturer Delphi, FCI, Foxconn, ITT, JAE, and Tyco, among others. PCMCIA development of this new standard also received USB Developer Forum (USB-IF), and ably assisted by PCI-SIG.
ExpressCard standard promises to provide desktop and notebook computers thinner, faster, and lighter expansion module. Consumers can easily insert the module to add their systems, such as memory, wired or wireless communications cards and security devices such as hardware capabilities.
While the 4 port usb expressCard adapter technology to use the existing PC card technology in many of the features, but the former in the shape of size, performance, reliability, adaptability, hot-swappable and auto-set among a variety of features to achieve a better balance. Between standards and PC card ExpressCard There are many differences.
1. Dimensions. ExpressCard is about half the size of PC Cards, while lighter weight.
2. Transmission speed. ExpressCard modules are better than PC Card PCI parallel bus interface, serial data interface, their effectiveness in reducing the number of interfaces required for the signal while increasing the bus speed of data transmission.
3. Costs. On its system and mechanical design approach, ExpressCard technology has lower manufacturing costs.
4. Less power consumption. ExpressCard module power consumption is lower than the traditional PC Card.
5. Ease of use. Eliminating the need to open the case because of the trouble, ExpressCard module allows for the desktop easier to install new components.
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