HP 372284-001 - Manual (Page 15)

Installation
— Connect the PS/2-to-USB interface adapter to the console USB keyboard port on the
switch front panel. Connect the PS/2 style mouse and keyboard to the appropriate
ports on the adapter.
IMPORTANT: If a USB mouse and USB keyboard are connected to the USB keyboard port on the
switch front panel, do not use the PS/2-to-USB interface adapter to connect a second keyboard
and mouse. Only use the rear panel USB ports to connect USB peripherals.
2. Connect the console speakers (1), microphone (2), and monitor (3) to the appropriate
ports on the switch rear panel.
2-2 HP 1x4 USB/PS2 KVM Switch User Guide