The new Cisco Unified Access Data Plane (UADP) Application-Specific Integrated Circuit (ASIC) powers the switch and enables uniform wired-wireless policy enforcement, application visibility, flexibility, and application optimization. This convergence is built on the resilience of the new and improved Cisco StackWise-480 technology. Number of Total Expansion Slots. Port / Expansion Slot Details. 24 x 10 Gigabit Ethernet Expansion Slot.