Proxmox + pfSense Build

This is a much better build combo for a pfSense and Proxmox combo box as intel CPUs will idle lower due to die design. The mobo already has a 2.5Gb port but the card used in video is linked here as well. The CPU you would choose would ideally have the integrated graphics, which the Pentium one here does. The i3 does not. No 12 or 11 gen CPU with an F will have iGPU. If you are running some light hosting off this in addition to pfSense, either would work great. This case when it has the mag covers removed provides a LOT of venting.