Lenovo ThinkSystem SM27A17643 User Manual page 42

Does ThinkSystem Analog 1x8 KVM Switch support USB
keyboards with USB hub function, such as Mac wired keyboard?
ThinkSystem Analog 1x8 KVM Switch does not support USB
keyboards with USB hub functions.
What to do when I forget the administrator password?
If you forget the password, contact the local dealer or Lenovo for
RMA service.
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Appendix B: Troubleshooting