Do you need USB 2.0?

Almost every conceivable peripheral has a USB 2.0 version ranging from a HDTV tuner to a micro hard drive to even video card. So, even if you buy a all-in-one HP multimedia PC with all the gizmos, you'll still need something USB eventually. (Maybe not Everything USB).

How do I know I plug in a Hi-Speed USB device?

The simplest way is to look for a Certified Hi-Speed USB logo on the retail packaging or on the product itself. The logo is exactly as shown on the right; it tells you what you are plugging into your USB port has passed the Hi-Speed compliance tests, meaning the product can enter Hi-speed USB mode if your system supports it.

How fast is USB 2.0?

USB 2.0 has a raw data rate at 480Mbps, and it is rated 40 times faster than its predecessor interface, USB 1.1, which tops at 12Mbps. Originally, USB 2.0 was intended to go only as fast as 240Mbps, but in October 1999, USB 2.0 Promoter Group pumped up the speed to 480Mbps.

How do I know if my PC has USB 2.0?

You can identify whether your PC has Hi-Speed USB or not relatively easy. Open Device Manager and expand the Universal Serial Bus section. There should be an "Enhanced" USB host controller present.

How does a USB hub slow down devices?

A USB hub has to re-calculate the time left before the next sof (end of the uframe); the small extra delay added by the hardware hub could make the transaction not handled as fast as a device directly connected to the host.

How can I tell if my reader is USB 1.1 or 2.0?

Install the USB 2.0 driver (the driver for the USB 2.0 version of our 6in1 reader). It may be used for USB 1.1 as well.




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