A 60 W CO₂.
IMO, a diode laser will have trouble with anything other than dead-black foam, because light material reflect pretty nearly all visible light … which is exactly what a visible-light diode laser emits. As a result, a diode will cut poorly, particularly through any material with non-zero-ish thickness.
Opinion: That laser has some disadvantages:
- Cloud-first design, so it depends on their servers
- No control panel, so you must use their interface
- LightBurn is “compatible”, but an afterthought
A previous discussion about the Gweike Cloud:
You should definitely do test runs before plunking down serious money!