X-media Xm-ub3004 4-port 5gbps Superspeed Usb 3.0 Mini Hub For Pc Laptop Mac

The ST4300USB3 4-Port SuperSpeed USB 3.0 Hub allows you to add 4 additional USB 3.0 ports from a single USB 3.0 connection to the host computer system. Backward compatible with USB 2.0 and USB 1.x standards, this USB 3.0 hub still supports older USB devices and can also be used as a hub on older systems that do not have USB 3.0 ports. With the capability to mix and match USB 3.0/2.0/1.x devices and be used with or without the included external power adapter, this hub offers the best of versatility and portability.

Backed by a StarTech.com 2-year warranty and free lifetime technical support. It is possible to use some USB hubs without a power supply, however, doing so may prevent the USB hub or certain high-power USB peripherals from operating. It is always recommended to use an included power supply with a USB hub when possible. When a power adapter is not used on a hub that comes with a power adapter, power is drawn from the USB port on the computer and then divided between the ports on the hub.

This reduces the power delivery to individual ports and high-powered USB peripherals, such as external hard drives, may not start. On USB hubs that can use a power adapter, more power can be supplied to USB ports than what is possible with a single USB port. If your USB peripherals require power adapters, they probably do not require power from the USB port and can be used on a USB hub without a power adapter. With USB peripherals that use power adapters, the USB ports on the hub are only used for data transfer and do not draw power from the hub. USB peripherals that require low power (for example, keyboards and mice) can be used on hubs without a power adapter, in conjunction with other low-power USB peripherals. In this case, power is drawn from the computer's USB port, as described above. When you troubleshoot issues with a USB hub, there are some quick tests that you can complete to rule out potential problems.

You can test to make sure that the following components are working correctly and are not the source of the issue: • USB A-to-B cable • Computer USB port • USB peripheral(s) To test your setup components, try the following: • Use the USB cable and USB peripheral(s) in another setup to see if the problem is with the components or the setup. • Use a different USB cable, USB port, and USB peripheral in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup. When you test your cables, it is recommended that you do the following: • Test each cable individually.

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• Use short cables when you are testing. When you test the hub, make sure that you do the following: • If a power adapter is included, provide power to the USB hub. • Attach a USB peripheral. Microsoft word for mac 2011.

The USB hub will not appear in any hardware listings on your system, but USB devices do appear when they are connected. • Install the drivers for the USB peripheral. • Install the latest drivers for the USB controller and motherboard chipset.

Note: No drivers or software are required for the USB hub to work with your operating system. The USB hub works independently of software and works with any operating system. When testing your USB peripherals, make sure that you do the following: • If required, attach external power.