USB HUB

USB HUB, a can be a USB interface is extended to multiple ( usually 4), and can make the interface while using the device.

Editor this paragraph USB definition

First, the word USB and hub part two

First, USB Universal SerialBus is the English abbreviation, Chinese is" universal serial bus", also known as universal serial interface.

In second, HUB is often call the hub, it is applied to the use of the star topology network, connecting multiple computers or network equipment.

Hub classification

The hub is divided into: 1 active 2 passive 3 hybrid.

1 active: on the connected network media signals are regenerated and enlarge the role, can make the connecting medium length and maximum effective length, need to have the power to work, most of the current HUB of this type.

2 passive only serve as a connector, which does not require a power source can work, the market has disappeared.

3 mixed type: can connect multiple types of cables, such as coaxial and twisted pair.

The hub ( HUB ) is the network for centralized management of the important tools, like the trunk of the tree, it is the branch of the rendezvous point. HUB is a shared equipment, its essence is a repeater, and repeater is the main function of the received signals are regenerative amplification, to expand the network transmission distance. In the network, hub is mainly used for sharing network construction, is to solve directly from the server to the desktop of the best, most of the economic programme. In a switched network, HUB directly connected with switch, the switch port data to the desktop. The use of HUB flexible networking, it is in a star network node, the node connected workstations for centralized management, not out of question workstation affects the normal operation of the network. Because HUB is an important role in the network, so it is very important to the selection.

USB HUB, even computer desk lamp, fan, MP3, U disk, recording pen, digital camera etc.

* a USB interface can be expanded into a plurality of independent work of the USB interface, each power supply up to 500MA

* using the second generation USB HUB controller

* directly connected with the computer, without external power source, easy to use

* computer automatic recognition and installation, no driver, plug, plug

* support for USB2.0, high speed of 480Mbps, downward compatibility to USB1.1

* built-in short circuit and overload protection device

* Support System: Win95 / 98 / Me / 2000 / XP, Linux2.4andMac os8.5 or above

Method of use

In 1, USB-HUB is provided to extend communications equipment, if HUB didn't answer the external power supply can drive 2.5 mobile hard disk main computer extended port power supply capability!

In 2, general 2.5 mobile hard disk needed by a computer or HUB power supply, 3.5 inch mobile hard disk needs to be also equipped with high-power special power supply; please do not directly connected with the equipment;

3, is not connected with the external power supply conditions: a computer USB port to provide current to about 500MA, barely enough for a 2.5 mobile hard disk use, after USB-HUB consumed part of, is not the ordinary 2.5 mobile hard disk use.

4, at present a lot of compatible machine chassis front USB ports, as a channel transfer, plus wire material, power supply capacity more not good; very easy to cause the mobile hard disk is unable to use or even data loss, damage to the hard drive; 5, if your mobile hard disk from "Da Da " sound, it is because of insufficient power supply caused by; for your mobile hard disk, preferably USB-HUB is connected to the rear chassis motherboard integrated USB port, to ensure better exposure and power supply; 6, the use of mobile hard disk, please use the original works with USB power supply lines, general USB wire, wire diameter fine, loss is big, cannot satisfy the needs of power supply!