IHSE USA 474 Series Draco major - Manual (Page 39)

Safety Instructions
2011-10-11 39
If you have a Triple-Head KVM/USB 2.0 console, you can also get access
to a Single-Head KVM/USB 2.0 CPU. However, the second and third
monitor will remain black.
You cannot use the USB periphery if you try to get access to CPUs
without USB 2.0 connection.