If your keyboard comes with the PS/2 adapter, you can convert the USB keyboard and use it as a PS/2 keyboard. Please use the PS/2 converter and connect the keyboard to the system directly to make sure the system detects the PS/2 style of keyboard before using it with the kvm switch. If it works, then it should work with the KVM too.
If your USB keyboard does not come with the PS/2 adapter, it may be the keyboard is not compatible with PS/2 bus and it will not work even you find a similar adapter.
Posted in: KVM Switches