configure physical server

This is my first post on this forum. I have a strange problem with the USB2 device. When it is connected to an ARM Raspberry Pi 4B system it is working without problems. I have a DELL 7010 with an i5-3570S computer, when I'm connecting the device to this computer the DVB-S2 USB tuner is not...

Hello, I plan to buy a server to install proxmox (with local storage) on which I plan to run a dozen virtual machines (Windows and Linux) And I wonder how to choose the physical processor, quantity, number of cores etc Does a vCPU correspond to a physical core? In which case, if I plan to...