Dc port size for Larbox X 2023

what is the size of dc port? I wanna use dc to usb-c converter and adaptor. And Is the 35W adapter enough to use? Or should it be higher?

12V/2A desktop type with light
DC outer diameter 3.5mm,
inner diameter 1.35mm,
head length 10mm adapter,
DC line length 1.2 meters,

Battery details: 38Wh (7.6V/5000MA)