Question about Microsoft Surface Laptop Studio

Hello together I would like to order a second power supply for the Surface Studio. Unfortunately I could not find it anywhere. The power supply has the number 1798: https://support.microsoft.com/de-de/surface/surface-netzteile-und-ladeanforderungen-0d9d51d4-594b-464d-9086-c90f35b80c01 Or are there other/other ways to charge the laptop? Thanks for the help.