What are the differences between USB 2.0 and 3.0?

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Nowadays, PCs have started to come up with USB 3.0 port. 2.0 ports were the most popular few days ago. What are the major differences between USB 2.0 and 3.0 ports? What are the data transfer rate in both the ports? What are the major changes made in the 3.0 from that of 2.0 port?

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Answered By 0 points N/A #193621

What are the differences between USB 2.0 and 3.0?

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Technology is advancing day by day. USB 3.0 is popular nowadays, but the main concept was started back in 2009 initially with 3.0 adapters.
There is a huge difference in both, one and most important is the difference between transfer rate. 
USB 3.0 transfer speed is up to 2.5 Gbps where as USB 2.0 transfer maximum 480 Mbps.
Also the amount of wires doubles from 4 to 8 in USB 3.0. USB 3.0 have different connectors mostly blue on the inside. 
USB 3.0 can also used in USB 2.0 ports 
USB 3.0 have more transfer rate.
USB 3.0 provides more efficient power management.
 
Major changes made in 3.0 and 2.0 ports:
USB 3.0 can be used in 2.0 port if it fits in the port
Mostly 3.0 are blue inside and 2.0 are gray in color
Maximum cable length of 3.0 is 3 meters and that of 2.0 is 5 meters. 
3.0 transfer speed is in GB's where 2.0 speed is in MB's 
This all creates a huge difference between both. 
 

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