laptop with serial port

I recently bought a remote power bar. To configure it you need to connect to it with a serial connection. However I checked all my laptops and it seems no laptop has a serial connection. I also tried looking for one online, but I can’t find one. Does anybody knows a vendor that still includes this port? If I’m not mistaken there still are a lot of routers and other hardware that still have to be configured over a serial connection. Luckily I still have a computer who has a serial port.