Tricks with USB Hubs

On many PC systems, a USB hub is connected. With some knowledge you set USB hubs, a more efficient and use the terminal potential to the full.

As a hub, a hub or star distribution is called the “computer language”. USB hubs (USB = Universal Serial Bus, dt. = Universal serial bus system) have evolved on PC systems to one of the most frequently encountered peripheral devices, because they are in daily PC use a practical aid when connecting USB devices. In particular, the frequent arrival and unplugging USB connections becomes unnecessary by connecting via Hub, also to wiring paths can be simplified. The following hardware tricks you use the performance of your USB hub from well:

  1. USB speed: From the first USB 1.0 to the current USB 3.0, which is gaining ground especially in the market, the USB has written a success story. Note that some PCs are not equipped throughout with the same USB interface type when connecting to a PC or notebook. There are quite devices that provide USB 2.0 and USB 3.0 ports. It is true that current USB 3.0 hubs are backward compatible, however, if in any doubt check whether the connection really supports the maximum speed.
  2. Hubs cascade: USB hubs can be cascaded, so “be connected in series”. This is practical and replace one or the other extension cable, the cable length should not exceed 5 meters. Keep in mind that a “slow” USB hub thwarting the “faster”, connected downstream. In particular, are still a surprising number of hubs in operation that only support USB 1.0/1.1. The only solution is to purchase a current USB hubs with USB 3.0 in order to ensure the best speed. This is particularly noticeable when connecting USB hard drives. Old USB 1.0 / 1.1 hubs are at most usable even for the connection of USB mice and keyboards, but actually a case for electronic waste recycling.
  3. From passive becomes active: Although some USB hubs have an input for a power supply, it is but for the operation of an active hub no AC adapter included. If such a hub providing a USB device such as a scanner or a USB hard drive, it is usually sufficient simply to attach a suitable power supply. Note that there must be a 5-volt power supply and the polarity (+/-) of the connector is correct.
  4. Power Save: The Smartercomputing USB Hub is a live electrical bus, small appliances can therefore derive their operating voltage directly from the USB and save to be a troublesome power supply again. The crux of the matter is, however, that all devices connected to the USB hub devices are supplied with operating voltage during the switch, the equipment that you need only rarely, such as a scanner. Trade now offers USB hubs with individually switchable ports, allowing you to stop this waste of electricity while avoiding the cumbersome plugging and unplugging the device. This is in practice also a nice solution if you operate on USB, for example, “office typical” devices such as LED lamp, fan or coffee cup warmer. A powered USB hub (4x USB 2.0) with switchable ports provides example Pearl.

Gallery

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