How to Know if your Computer has USB 3.0 Port or Not free

Universal Serial Bus (USB) is a technology to connect your devices to computer easily and efficiently. Back in 1990′s famous IT companies of the world Compaq, DEC, IBM, Intel, Microsoft, NEC and Nortel work on a standard interface which can not only provide cables, connectors and communications protocols but also power thought it. Some of you might have used PS/2 port mouse and keyboards which was standard at that time. But obviously the problem with this technology was the speed at which data can be transferred. So big companies decided to work on USB and in 1996 they introduced the first even version of it with code name USB 1.0 and so on.

USB 2.0 Speed Limit

Back in year 2000 USB 2.0 technology was released with maximum data reading speed of 60 megabytes per second (MBps) which is in theory looks great but unfortunately in reality it’s way to low from this standard. Normal USB 2.0 pen drives have maximum reading speed of 10MB/s and writing speed of only 5MB/s which is obviously very slow. So that why we need some thing which is more efficient and fast so that it can matched today’s fast world.

USB 3.0 Benefits

• Unlike previous versions USB 3.0 provide realistic Transfer Rate of 500MB/S(which means 10GB data can be transferred into just 20 seconds).
• It supports bi-directional data transfer which means you can read and write data at full sped at a time.(this feature was not available before)
• The power load has been increased to 150 mA with minimum operating voltage dropping to just 4 Volts.
• USB 3.0 supports computer idle, sleep, and suspend states which means you can perform tasks even without fully powering on your computer.
• It’s physical appearance has also changed from black to blue color so that you can easily identify the ports in your computer.
• USB 3.0 is also backwards compatible with USB 2.0 which means you can plugin any old device and it will work fine.

Not so Good News

• Unfortunately this standard is not yet supported by Windows Xp.
• Maximum cable length supported is only 3 meters.