HP USB Keyboard with USB Ports

Table A-1 Troubleshooting (continued)
Problem Possible Cause Solution
External USB hard drive or optical drive
does not function when connected to
the keyboard.
Drive requires an external power
source.
Only hard drives and optical drives with
an external power source are
supported. Ensure that the drive is
plugged into an external power source.
Hard drives and optical drives that do
not have an external power source are
not supported.
USB 3.0 device does not run at USB
3.0 speed.
USB 3.0 speeds are not supported. USB 3.0 devices will only run at USB
2.0 speed when plugged into the USB
2.0 ports on the keyboard.
Online Technical Support
For the online access to technical support information, self-solve tools, online assistance, community
forums or IT experts, broad multivendor knowledge base, monitoring and diagnostic tools, go to
http://www.hp.com/support.
Preparing to Call Technical Support
If you cannot solve a problem using the troubleshooting tips in this section, you may call technical
support. Have the following information available when you call:
Serial number of the HP accessory located on the bottom of the product
Purchase date on invoice
Condition under which the problem occurred
Error messages received
Hardware configuration
Hardware and software you are using
6 Appendix A Troubleshooting ENWW