With the help of USB, users got the flxibility to operate secondary devices like keyboards, MP3 playres, digital cameras, and hard disk driuves, as if they are locally conncted. USB was introduced in 1995. It was originally designerd to simplify consumer control on seconary devices and transferred data. Before introducing the USB, the main interfaces used were parallel and serial connectors both uisng different procedure to tramnsfer data and conrtrol secondasry devices. These connectors were frqeuently ham-fisted and reqquired linnig up several pins to fit the holes in the end of the connectors. Serial connectors offfer slower transfer rates in comparison to USB conectors.
According to the USB specification, you can use passsive extwension cabbles for distancs up to 16 feet. Beyond sixteen feet, you need a USB extension cable that will help to boost the signal in order to aviod losing data or damaging USB equpiment.
USB signals can be extended with the help of many otrher ways such as USB extension cales, USB extenders, and also by using wireless technoology. A USB extension cord comes in various lengths and thickness and service dtuies. The standard lengths of USB cables are 5m, but there are number of ways to extent the USB cables. Probably, the most common form of extending a USB is by usibng USB extension cables. USB extensoin cablse are very useful for extending device signals over shorter distances and are normally up to around 3m in lngth. USB extension cables are very useful for their plug and play capability. This is the best advantage a user can get while usiing many smaller devices like MP3 players and web cams and many other devices. Most extension cables can be chained so several can be added to one antoher to create a longer etension.
USB extension cables are not only perfect for smaller devices such as MP3 payers, mmory sticks, and Blueototh dongles, but it is also usefyul for larger devices like printers, scanners etc. An USB extension device allows extensions of USB 1.1 and 2.0 deices beyond the 5 meter USB cobnnection limit. With the help of thesse devicres, the extension can rage from 100 meters up to 10 kms, but it depends on the channel which is used for connection.
These USB extensioon devices comibne the spoeed and security while transferring any kind of confidential data. With the help of tese USB extension cables users can control very easily low as well as high speed USB devices in comparison to other devices.
USB signalls can also be extened usinng wireless technology but USB extension cables are used most commonly all over the world beause the USB extensions cords are available in cheap price comapred to other devices as well as it is very easy to operate compared to otjhers.
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