I am using the Kensington adapter referred to in another thread. Thanks to DenverBrian I now have the right tip for it

When I look at the empower adapter, I can see where it plugs into the seat, but I can't figure out how it plugs into the laptop? It has a plug that doesn't seem to match anything else. Do I need a separate adapter to go from the empower adapter to my Kensington power supply?

Sorry if this isn't clear, I am unsure of the right terms for these.