4 Ports USB 3.0 HUB Super Speed

The USB 3.0 Hub easily adds up to 4 USB 3.0 ports to the  Computer or Lap Top or Tablet and connects super speed peripherals like USB 3.0, digital video cameras, external hard drives, high-resolution webcams and save time with faster transfer rates of up to 5 Gbps. The lightening fast 5 Gbps transfer rate is up to 10 times faster than USB 2.0 (480 Mbps). The hub is backward compatible so while it is capable of super speed transfers, it also supports USB 2.0 and USB 1.1 speeds. It automatically detects the USB type and transfer data at the maximum rate for each individual port.

The said USB allows you to transfer data at very high speeds of up to 5 Gbps–up to 10 times faster than USB 2.0*. You can make a backup copy of your photos, music, and HD movies to a USB  external storage device faster than ever Each port delivers up to 900 MA of power with the included power adapter for faster charging and power hungry USB devices.

It can convert one of your computer’s USB ports into an external hub that supports up to four additional USB devices at up to 10x faster speeds than USB 2.0. It allows you to connect USB devices such as digital cameras, phones, external hard drives, flash drives, and printers without requiring any software or complicated installation process. Its sleek compact design saves your precious desktop space while also extremely portable and easy to move between systems or take on the road.

Connect All Your Peripherals

Backward compatibility with USB 2.0 and USB 1.1 means that you can connect any USB device to your computer. Each port automatically detects the USB type and transfer data at a maximum rate for each individual port. In case we need more ports, we can easily connect additional USB hubs to support up to 127 devices.

A key change is the elimination of polling. In USB 2.0, the host continuously polls all connected peripheral devices to see if they have the data they need to send to the host controller. This means that all devices must be “on” at all times. With Super Speed USB, this polling is replaced by asynchronous notification. The host waits until a higher level application (such as a file manager) tells it that there is a peripheral that has the data it needs to send to the host. The host then contacts that specific peripheral telling it that the host is ready to accept that data and asks if it is ready to send the data. When both ends of the link are ready, the data

Is transferred.
In addition to eliminating polling, Super Speed USB eliminated the broadcast nature of the USB 2.0 bus protocol. Super Speed USB uses directed data transfer from/to the host and only the target function (and obviously any hubs in the path). This again enables power savings by only requiring the device for which the data are intended to turn on its transceiver. The other peripherals on the bus do not need to burn power determining that the data request is not directed towards them.

Another key change was to focus on improving the power efficiency of the bus. This is ideal for extending the battery life for portable devices, whether hosts (notebook PCs) or peripherals. The specification defines excellent power characteristics, especially for idle links. Both upstream and downstream ports can initiate lower power states of the link. There is also local power management control using multiple link power states defined to further improve the power use efficiency. As mentioned above, eliminating polling and broadcasting also has reduced the overall power requirements. If you consider a simple file transfer, this focus on bus efficiencies combined with the over 10X speed increase more than makes up for the actual higher power that the transmitter uses (?). The result is that the Super Speed USB will only use one-third the amount of power that USB 2.0 high-speed requires to transmit the same amount of data.

4 Ports USB 3.0 HUB Super Speed


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