The characteristics of a USB port generally do not attract enough attention from people. There are different types of hardware today and each has different advantages and benefits.
USB devices allow data transfer to computers in an efficient and easy way. However, the care of this device must be cautious to preserve the optimization of the same.
What is a USB?
As a brief introduction, it is important to clarify the concept of USB (Universal Serial Bus). This is the name given to an interface that is activated when a device is connected.
The computer can work without major problems with the connected device, so you don’t need driver installation for it. This case can be evidenced in devices such as keyboards, mice, pen drives and memories.
Like everything related to the world of computers, each of the components that are part of a computer can evolve in a more than favorable way. In this sense, the technology of the USB 2.0 offers a data transfer speed of at least 60MB per second.
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- This technology of the Universal Serial Bus it is present in the vast majority of computers today.
- It allows the seamless connection of devices such as memories, cameras, printers, cell phones, among others.
- However, multimedia content has not been immune to constant evolution, and the high quality of these files has been an obstacle in this type of technology.
Super USB 3.0
Before the high definition of content multimedia, it is decided to evolve the capacity of the USB ports. In this sense, if USB 2.0 ports were called Hi-Speed USB, 3.0 came to be presented as Super-Speed USB.
Are they right? All! While they are aesthetically identical, transfer speed is much higher than version 2.0, transferring high definition files at a dizzying rate of 4.8 GB per second.
- A disadvantage of this version of ports is that it is not available for many computers.
- The higher the speed, the higher the consumption. The USB 3.0 port consumes approximately 900 mA, that is, 400 mA more than version 2.0 (500 mA)
Can you use a USB 2.0 technology device in a USB 3.0 port and vice versa? Surely you have done it before and you have not even noticed. Anyways, USB devices can be used in any port, regardless of the technology you use.
Imposition of limits
While it is true that it exists, backward compatibility between devices and ports, this does not mean that they can work with the speed that characterizes them. In that sense:
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- When connecting a USB 2.0 device to a port that uses 3.0 technology, you will not be able to enjoy the speed that characterizes the port, staying at its standard speed of 60 MB per second.
- The same thing happens in reverse. When connecting a device USB 3.0 to a port with 3.0 technology, the speed capacity in file transfers by the device will be significantly reduced.
As noted above, USB 2.0 port technology is found in the vast majority of computers around the world.
- Many of these computers still have Windows operating systems. Old windows, such as the XP version, you may only be able to use USB 2.0 devices.
- For versions later than Windows XP, there is greater responsiveness in terms of connecting devices and ports of different versions.
- Some users have reported problems when testing the backward compatibility of devices and ports in Windows 8, creating the need to download and install programs that could solve these problems.
- One of the more stable versions of Windows As for the backward compatibility of devices and ports of different technologies, it is Windows 10, but of course, you should always keep in mind the speed limitation.
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