Atech Flash Technology XM-28U - Manual (Page 4)

Installation
3
This is an USB 2.0 device and it is backward compatible with USB 1.1 interface.
However, USB 1.1 performance can only be expected when connected to
a USB 1.1. port.
When the unit is connected to a USB 1.1 port, the following Windows message
may appear:
"A HI-SPEED USB device is plugged into a non-HI-SPEED
USB hub. For assistance in solving this problem, click
this message"
Please ignore the message.
Please also be sure to remove the power plug of your computer to avoid electrical
shock or damage to your system.
Windows 98SE or Windows 2000 users:
Driver installation is required. Please perform software setup first before using
the XM-28U.