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What is usb hub

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Update time : 2023-08-14 10:48:10
  USB Hub refers to a device that can expand one USB interface into multiple ones and enable these interfaces to be used at the same time. USB HUB can be divided into USB2.0 HUB, USB3.0 HUB and USB3.1 HUB according to its USB protocol.
  First of all, the term is divided into two parts: USB and hub.
  First, USB is the abbreviation of Universal Serial Bus in English, and "Universal Serial Bus" in Chinese, also known as Universal Serial Interface.
  Second, the Hub is what we often call a hub, which uses a star topology to connect multiple USB interface devices.
  USB Hub, can be connected to computer desk lamp, computer fan, MP3, U disk, voice recorder, digital camera, etc.
  * A USB interface can be expanded into multiple USB interfaces that work independently.
  * Using the second generation USB HUB controller
  * Directly connected to the computer, no external power supply required, easy to use
  * The computer automatically recognizes and installs, no driver is required, plug and play, easy to plug and unplug
  * Support USB2.0, speed up to 480Mbps, backward compatible with USB1.1
  * Built-in current overload short circuit protection device
  * System support: Win95/98/Me/2000/XP, Linux2.4andMac os8.5 or above
  1. USB-HUB is a device that provides extended communication. If the Hub is not connected to an external power supply, whether it can drive a 2.5-inch mobile hard disk depends mainly on the power supply capacity of the computer's expansion port!
  2. Generally, the 2.5-inch mobile hard disk needs to be powered by the computer or the Hub, and the 3.5-inch mobile hard disk needs to be equipped with a dedicated high-power power supply; please do not directly connect this type of device;
  3. In the case of no external power supply: the current provided by a computer USB port is about 500MA, which is barely enough for a 2.5-inch mobile hard disk, and a part of it is consumed by the USB-Hub, which is not enough for an ordinary 2.5-inch mobile hard disk. of.
  4. The front USB port of many compatible computer cases, due to an extra adapter, coupled with material problems such as wire materials, the power supply capacity is even worse; it is very easy to cause the mobile hard disk to be unusable or even lose data and damage the hard disk;
  5. If your mobile hard disk makes a "click" sound, it is caused by insufficient power supply; for your mobile hard disk, it is recommended to connect the USB-Hub to the integrated USB port on the motherboard on the back of the case to ensure better performance. Contact and power supply
  6. Please use the USB power supply cable provided by the original factory when using the mobile hard disk. Ordinary usb cables have thin wire diameters and large losses, which cannot meet the needs of power supply!