The PA-7500 Series firewalls are high-performance modular firewalls designed for large
enterprise environments. These multi-blade chassis can leverage either AC or DC power
and use hot-swappable slot cards to allow for expansion as needs grow. There are a total
of nine horizontally-oriented slots on the front of the chassis where you can install a
Management Processing Card (MPC), multiple Network Processing Cards (NPCs), and multiple
Data Processing Cards (DPCs). At least one MPC, NPC, and DPC are required for the
firewall to operate. The back of the chassis has two vertically-oriented slots that can
accommodate up to two Switch Fabric Cards (SFCs).
