What are the pro and cons of USB 3.0?

Define USB:

A USB stands for Universal Serial Bus, is the most popular connector used by the latest electronic devices to connect a system to any devices such as mobile phones, digital cameras, external hard drives and more. USB is supported by all the major operating systems. It is a plug and play device. When user attaches their USB device to the computer, it’s automatically installs the drivers which are needed to use it. Users can add and remove their USB device without having to restart the system.

advantages and disadvantages of usb 3.0Earlier, in USB device there are two versions one is USB 1.0 and another one is USB 2.0. The data transfer speed in USB 1.0 is up to 11 Mbps and was mostly utilized to connect mouse and keyboards. Whereas, in USB 2.0 data transfer rate is 480 Mbps. If you want to make use of advantage of USB 2.0 higher data transfer rate, then you need have installed ports on your system are of USB 2.0 also. If you want for more information and its advantages and disadvantages of USB 3.0 read on.

In today’s world, most of the computer users are keeping lots of data in gigabytes (GB) and they need to copy large number of files from one storage device to another. By utilizing USB 2.0 it takes more time to copy the data. Due to advancement in technologies we finally come up with its successor that is USB 3.0 and it is much faster than its predecessor (USB 2.0) and with some other additional improvements. So, let’s have a note on what are the advantages and disadvantages of USB 3.0:


USB 3.0 supports the data transfer rate up to 5 GB/s (gigabytes per second) and is the latest version of the Universal Serial Bus. In addition to the high data transfer rate, USB 3.0 is optimized for low power consumption and protocol efficiency is also improved. USB 3.0 follows an asynchronous mechanism that is, user can send and receive data simultaneously (Full duplex), one to receive data and another one to transmit where in USB 2.0 can only handle only one direction of data at any time. It uses power consumption up to 900 mA which allows better power efficiency with less power for idle states. It can power more devices from one hub.


The disadvantage of USB 3.0 is that, user need to have a USB 3.0 port on their system to make use of high speed data transfer features. Because naturally all the electronic devices are having USB 2.0 port installed in it. Magnetic hard disks are limited by their read or write speed and corresponding RPM. The USB 3.0 is incompatible with USB 1.1 and the maximum cable length of USB 3.0 is 3 meters when compared to the 5 meters of USB 2.0.

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