usbhub what does it mean

What does usbhub mean?

Everyone knows USB, but many friends may not know usb hub. What does usb hub mean? What is the use of usb hub? The editor below will answer it for you.

UBS HUB's scientific name is USB hub

Simply put, USB HUB is a device that can separate a USB port into many USBs. It is usually used when the USB interface of the user's computer is insufficient and more USB devices can be connected externally.

USB HUB can be divided into USB2.0 HUB, USB3.0 HUB and USB3.1 HUB according to the USB protocol it belongs to. Of course, it needs the support of the USB you are connected to.
USB HUB can be divided into power supply and non-power supply:
The HUB with power supply can support high-power USB devices, but the one without power supply cannot support it.

It is recommended to connect an external power supply. Helps USB work stably.

The maximum output current of the USB2.0 interface of the computer is 500mA, and the output voltage is 5V. After conversion, the theoretical output power of each USB2.0 interface of the computer is 2500mW, and the splitter itself also has some losses, so when If the output power of the USBhub splitter is greater than 2500mW, an external power supply is required. The computer also has a USB3.0 interface. The output current is usually around 750mA, and some models can reach 1A. The output voltage is also 5V. In the same way, the external output power (according to the maximum) reaches 5W. If it exceeds, an external power supply is required. In this case, whether USB2.0 or USB3.0 is used through a splitter, no matter how many interfaces there are, your input and actual usage determine whether to connect an external power supply.

Commonly used USB high-power devices include:

Smartphones, USB speakers, USB fans, USB hand warmers, power banks, mobile hard drives

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