USB 3.0 vs USB 3.1-Difference between USB 3.0 and USB 3.1
This page compares USB 3.0 vs USB 3.1 versions and mentions difference between USB 3.0 and USB 3.1.
The USB stands for Universal Serial Bus. It is interface similar to RS232 and RS485 but supports higher data rates at various distances. USB supports peer to peer communication. In this type of interface, communication takes place between host and peripheral and not between two hosts (or peripherals). The USB standard defines specifications for cables, connectors and protocols. It mentions requirements for connection, communication and PS (power supply) between PCs and peripheral devices. There are various versions of USB which include v1.x, v2.x and V3.x. Each of these versions support different data rates.
• It is successor to USB 1.0 and USB 2.0
• It is released in Nov. 2008
• Transfer rate/speed: 480 Mbps (or approx. 5 Gbps)
• Power consumption: 100 mA
• Backward compatibility: USB 1.x
• Smart charging not available
• Bidirectional data transfer not supported
• It is known as USB 3.1 Gen1.
• It is also known by SuperSpeed USB.
• Speed: 10 Gbps
• It is released in 2013
• USB 3.1 is backwards compatible with USB 2.0 and USB 3.0 but requires appropriate adapters.
• Power consumption: 5 A
• It is known as USB 3.1 Gen2
• It is also known by SuperSpeed USB 10Gbps.
Tabular difference between USB 3.0 and USB 3.1
Following table summarizes difference between USB 3.0 and USB 3.1 versions.
|Features||USB 3.0||USB 3.1|
|Transfer rate||480 Mbps (or approx. 5 Gbps)||10 Gbps|
|Power output||4.5 Watt||100 Watt|
|Bandwidth||400 Mbps||400 Mbps (Gen1), 900Mbps (Gen2)|
|Max. cable length||5 m||1m (USB 3.1 Gen2), 5m (USB 3.1 Gen1).|
|Known as||SuperSpeed USB||SuperSpeed USB 10Gbps|
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