Hello

I bought this nice keyboard recently, and I need to connect it
to a KVM box that only handles PS/2. I tried one of those green USB to
PS/2 widgets to connect USB mice to a PS/2 port, to no avail (no
power).

Does someone whether it's just impossible to connect a USB keyboard to
a PS/2 port? If not, how can I tell an OK adapter to a NOK adapter?

Thank you.