PXI is a different extention (stands for PCI eXtentions for Instrumentation) that is designed for instrumentation. Here is a good video on it - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-k_JrU75M4s8.html Here's an example of some PXI chassis - www.keysight.com/us/en/products/modular/pxi-products/pxi-chassis-and-controllers.html
You made a big mistake in the introduction. PCIe stands for Peripheral Component Interconnect Express. It is NOT "Internet Connect"! The Internet has nothing to do with it!
"I'll write in my mother language in content done with foreign language , they might help me" stop being lazy hispanicbro and learn the language or translate