RSP 720 with PFC-3CXL includes: ? Two Gigabit Ethernet ports (port 1 supports 1-Gbps SFP module; port 2 is configurable for either SFP module or 10/100/1000BASE-TX through a RJ-45 connector ? Integrated 720-Gbps switch fabric ? PFC-3CXL (high capacity) and MSFC4 ? Route processor: 1- to 4-GB DRAM (2-GB default) ? Switch processor: 1- to 2-GB DRAM (1-GB default) ? Two external Compact Flash Type II slots ? 4-MB NVRAM ? 512-MB internal boot memory (Compact Flash)