Designed for Kernel-based Virtual Machine hypervisors (like Proxmox, QEMU, or Nutanix AHV) 723: Version 7.2.3
The specific string refers to a very particular technical image for a FortiGate Next-Generation Firewall (NGFW). If you are looking to download this specific build, Decoding the Filename fgtvm64kvmv723fbuild1262fortinetoutkvmqcow2 download link
Locate the file: FGT_VM64_KVM-v7-build1262-FORTINET.out.kvm.qcow2 . Licensing and Trial Mode fgtvm64kvmv723fbuild1262fortinetoutkvmqcow2 download link
After booting, run the command get system status to verify you are indeed running Version 7.2.3 Build 1262. fgtvm64kvmv723fbuild1262fortinetoutkvmqcow2 download link
To understand what you are downloading, the filename breaks down as follows: FortiGate VM64: 64-bit Virtual Machine