Interface Adapter

TESTED Cisco 12000 SIP 501 4 x Port Adapter Interface Processor
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Cisco PA GE Port Adapter Network Interface Module
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Acterna TTC 6000A Communication Analyzer FireBird with RS 449 Interface Adapter
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TTC JDSU 31812 34M INTERFACE ADAPTER MODULE
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TTC 41400 RS 449 INTERFACE ADAPTER FOR 6000A ANALYZER
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Interface Adapter

How Fast Does ExpressCard to USB Adapter Runs?

Over the next six months, we can see the ExpressCard to USB Adapter cards and peripherals, such as springing been emitted. What a powerful USB 3.0 interface, on what basis? What reason is worth buying? We take you to see through make sense of USB 3.0.

November 18, 2008 are destined to be loaded computer history. On this day, from Intel, Microsoft, Hewlett-Packard, Texas Instruments, NEC, ST-NXP industry titans such as the composition of USB 3.0 Promoter Group announced that the organization responsible for developing a new generation of USB 3.0 standard has been formally completed and released publicly. The new specification provides a ten-fold in the USB 2.0 transfer speeds and higher energy efficiency can be widely used in PC peripherals and consumer electronic products.

Since the inception of USB 2.0 specification, the industry on the USB 2.0 and IEEE1394 debate over who is faster and there is no idle time. With low cost and broad industry support, USB expresscard adapter is no suspense as computer peripherals in fact the only standard, IEEE1394 gradually been marginalized, and now is only active in the field of digital video. On the surface, USB 2.0 480Mbps transfer rate should be slightly higher than the IEEE1394a 400Mbps transfer rate, however, the cost of removing a variety of transmission, in the actual use of the maximum transfer rate of USB 2.0 specifications and even hard to break a 50MB / s. This means that copying a Blu-ray movie, you need more than 10 minutes. 50MB / s transfer rate less than the peak, but also greatly limits the high-speed flash memory, high-speed performance of the hard disk to play.

The advent of USB 3.0, first of all need to be resolved is the transfer rates. Catch-up after IEEE1394b specifications, before eSATA 3Gbps speed intercept, USB 3.0 has an overwhelming need to start a performance advantage in order to consolidate the position of the king of peripheral interfaces. To this end, USB alliance chose 5Gbps this amazing transfer rate. Such a speed not only directly kills the IEEE1394 interface, the follow-up specifications, even the eSATA upgrade to 6Gbps are not much better.

USB 2.0 inception, USB organizations put all the speed of USB standard into the 2.0 standard. USB 3.0 is no exception. Which is still the speed of USB 1.1 11Mbps product will be called USB Full Speed, and USB 2.0 480Mbps transfer rate specifications of the product will be called Expresscard USB HighSpeed, while the 5Gbps's USB 3,0 specification is defined as SuperSpeed. As the USB still retained the fine tradition of backward compatibility, so between the three specifications of equipment will still be common, and even have been marked as USB 3.0 products, the transfer rate between them through Full Speed / High Speed / Super Speed suffix to distinguish.

Since all of USB devices to achieve compatibility, it naturally can not have too much USB interface changes. The new USB 3.0 interface and the physical characteristics of cable is downward compatible. Of course, as long as the equipment interfaces, and there is a wire does not support the USB 3.0 standard, it can not be achieved Superspeed ultra-high-speed, but at least the USB 3.0 cable plugged into 2.0 interface can be assured that will not explode. The key is compatible with USB 3.0 interface design.

USB 2.0 interfaces, a total of four lines, two of which correspond to the data input and output, the other two are power and ground. USB 3.0 On this basis, an increase of five contacts, new contacts side by side in the four rear USB 2.0 contacts. In other words, from the expresscard USB adapter connector at you can see the difference between 3.0 and 2.0 cables. In order to further foolproof, USB 3.0 interfaces were marked in blue, and black of the USB 2.0 interface, USB 1.0 interface, the white drawn a line.

About the Author

jackdrogba worked at a computer company for various computer parts,such as expresscard to rs232,expresscard to firewire adapter and other goods.