I recently picked up 3 PTZOptics PT30xSE-GY-G3 cameras and a PTZOptics Superjoy controller. I was using OBS but find vMix is much easier for me so I switched.

I am using them over IP and linking them up with a GS108PP Netgear switch (probably overkill but I wanted something that can be abused). Everything is over Cat6 cable. They all have different IP addresses.

When I go into vMix to add the cameras as inputs, they all show under NDI and not under the camera section. From what I know they are not NDI and if I wanted I can upgrade them to NDI but I dont need all of the extra features. It prompts me to go to "ndi.link/ndihx" but when im there is just looks like an informational page.

I am new to PTZ cameras. These are for our temple where I run the audio and other vusial so I can get a little geeky if needed. In OBS, they showed up no problem. What can I do?

The camera section in vMix is exclusively for hardware inputs (such as a DeckLink SDI card). The PTZ optics cameras always output NDI even without a license. When you don't have a license it displays an image telling you that it supports NDI HX.

Your best course of action would be to run coax for SDI and purchase a DeckLink card. This is the lowest latency, least taxing for the CPU, and the best image quality.

In OBS you must have been using a different protocol as @mavik has suggested. These are also your only options if you don't want to spend any more money.