just got new XPpen Artist 15.6 Pro V2 drawing display tablet and its not working

brand new. I have plugged it into my computer like 100 different ways and it always says no signal. my PC is windows 10 with a Nvidia Geforce RTX 3070. I heard online that it needs to be plugged into the graphics card directly, so I bought a USB-C to DisplayPort cable (didn't work). I haven't tried a USB-C to HDMI cable. Yes drivers are installed but my computer doesn't even recognize the device at all even if i plug it directly into the motherboard. Yes I have plugged in the power supply too. Yes I have restarted my computer several times.

I have contacted support but they only respond at like 4 am and I'm tired of waiting.