Physical Panorama appliances are expensive. Using panorama-kvm-10.0.4.qcow2 on your existing KVM hypervisors allows you to use your own hardware, paying only for Palo Alto Networks licensing (Panorama-VM license).
: 81 GB (allocated by default via the QCOW2 image). Panorama Mode (Management + Log Collection) vCPU : 8 to 16 vCPUs. RAM : 32 GB to 64 GB RAM. System Disk : 81 GB base image.