What is USB and USB port?
A USB (Universal Serial Bus) refers to a standard type of connection used to connect many types of electronic devices like smartphones, keyboards, chargers, mice, printers, cameras, external/internal hard drives and many more. Generally, USB refers to the types of cables and connectors used to connect these all above types of peripheral devices to computers. In this article, I’ll discuss all types of major USB versions & ports. So let’s get started.
A USB port is a standard cable connection interface between the computers and electronic peripheral devices. USB ports allow USB devices to be connected to each other with and transfer digital data over USB cables. They can also supply electric power across the cable to devices that need it.
Types of USB versions
There have been many types of standard USB versions from starting (USB 1.x) to the latest (USB 3.x) one. Let’s find out what does it have.
- USB 1.0 & 1.1– USB 1.0 released in January 1996 and USB 1.1 released in August 1998. These USB versions used initially to connect the electronic devices for data transfer. Both USB standards can be reached a maximum of 12 MBps data transfer rate.
- USB 2.0– This USB version released in April 2000. This type of USB version is very popular and used extensively across the world till so far. USB 2.0 compatible devices can reach a maximum transfer rate of 480 Mbps.
- USB 3.0– This USB version released in November 2008. This type of version delivers high-speed data transfer rate between the connected device. USB 3.0 compatible devices can reach a maximum transfer rate of 5 Gbps. It is also called superspeed USB version. This type of USB versions comes in premium devices and can be recognized by the blue color port.
- USB 3.1 & 3.2– USB 3.1 released in July 2013 and USB 3.2 released in September 2017. USB 3.1 & 3.2 compatible devices can reach a maximum transfer rate of 10 Gbps & 20 Gbps respectively. It is also called superspeed+ USB version. This is the latest USB version used in the premium devices to transfer the data between the devices at a very high transfer rate.
Types of USB ports (connectors)
There are so many USB ports used to connect the electronic devices but I will talk about only those ports used very commonly and popularly. There are basically three types of ports are used to connect and deliver power to the electronic gadgets.
- USB Type A– Officially called USB standard-A, these plugs are rectangular in shape and are the most commonly seen USB connectors. USB A devices are rectangular in shape and are typically used for wired mice, printers, microphones, external storage devices, and more.
- USB Type B– Officially called USB standard-B, these plugs are square shaped with an extra notch on top, most noticeable on USB 3.0 Type B connectors. This rectangular connector approximately 1.4 cm (9/16 in) length by 0.65 cm (1/4 in) height is commonly found on routers, computers, printers and game consoles.
- USB Type C– Often referred to simply as USB-C, these plugs are rectangular in shape with four rounded corners with dimensions of 0.84 cm by 0.26cm, this newer standard is designed to replace both A and B with smaller ports to better support the thinner form factors of mobile devices. Type C generally very small in size but more than enough to deliver power up to 100 W and can deliver power to small devices like smartphones to giant electronic devices like even servers. This type of port can be seen in Apple’s Macbook and Google’s Chromebook.
Type C is the future of connectors and data cables and will replace all type of ports and data cable soon. In near future, you will need just only one type of port an data cable for your electronic gadgets to power them and to transfer data. So next time when you will buy any smartphone and laptops then keep this article in the mind to maximize it.
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