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Power Consumption: Power provided by USB 2 is up to 500mA but USB connection provides 900mA.
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Speed Improvement: Transfer speed rate of USB 2 is 480 Mbps whereas transfer rate of USB 3 is 4.8 Gbps which is 10 times faster than the bandwidth of USB 2 port.So, usb 2.0 vs 3.0? Internally, USB 2 has 4 wires where USB 3 has 9 wires. USB 3 is generally colored Blue on inside to distinguish it from USB 2. Physical Difference: Both USB 2 and USB 3 are physically different.Nowadays, it has become more popular than USB 3.0. USB Type C Connector : It is the latest craze. The working principle is the same as USB 3.0. USB 3 cable can be of a maximum 3 meters long. So, it is possible to power more devices from one hub. Power usage is up to 900 mA that allows more power efficiency with less power.USB 3 is generally more expensive than the same kind of USB 2.It is full-duplex which means it can send and receive data simultaneously.Its maximum data transfer speed is about 5 Gbps(Gigabits per second).USB 3 or Universal Serial Bus 3 connector type or Super-speed USB 3 was released in 2008.USB 2 cable can be of maximum 5 meters long. Power usage is up to 500 mA which is not that efficient.USB 2 is generally less expensive than the same kind of USB 3.It is half-duplex which means it can send or receive data at a time.It has a maximum data transfer speed of 480 Mbps.USB 2 or Universal Serial Bus 2 or High-speed USB-2 was released in 2000.In your smartphone, you’ll find micro-USB. PC and laptops have generally standard shapes. Standard, Mini, or Micro variations are available in all versions of USBs. The USB connector has many sizes and shapes. Version of USB USB 1.x Data transfer rate of 12 Mbps, supports up to 127 peripheral devices USB 2.0 Is Known as a hi-speed USB, supports USB 1 devices and cables, was first introduced in 2000 USB 3.0 Is Known as SuperSpeed USB, an improved version of USB-2, first introduced in 2008 USB 3.1 Known as SuperSpeed+, is the latest version of USB having the fastest data transfer rate, was first introduced in 2014 USB Type-C USB C connector is a reversible plug which is a double-sided connector having 24 pins, was introduced around the time of USB 3.1 Variations of USB Connector USB Connector Types It is generally known as a USB flash drive and its functionality is to store data like a hard drive. When you connect a pen drive or camera or smartphone through a cable to your PC, the cable is known as a USB cable and the port you are using to connect to your PC is the USB port.
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