Power Adapters Too
HP is pulling the same shyte with their power adapters. If you look at the connector on an HP power brick there's a good chance that you'll see a thin, pointy pin in the middle. That pin connects to a chip in the adaptor that lets the HP computer know what the 19.5V is "Genuine HP 19.5V", vastly superior to "Brand X 19.5V". You can tell that the HP power is superior from the price of a replacement adapter, if you can find it.
HP kit has been complete garbage for ages now. I can't believe that people still buy it.