ISR 4451 X K9 4GE 3NIM 2SM 8G FLASH 4G DRAM 1 2G system throughput 4 ports Product Code Cisco ISR4451-X/K9 Aggregate Throughput 1 Gbps to 2Gbps Total onboard WAN or LAN 10/100/1000 ports 4 RJ-45-based ports 4 SFP-based ports 4 Enhanced service-module (SM-X) slot 2 NIM (Network Interface Modules) slots 3 Onboard ISC slot 1 DDRM (data plane) 2 GB (default) / 2 GB (maximum) DDRM (control/services plane) 4 GB (default) / 16 GB (maximum) Flash Memory 8 GB (default) / 32 GB (maximum) Power-supply options Internal: AC, DC (roadmap) and PoE Rack height 2 RU Dimensions (H x W x D) 88.9 x 438.15 x 469.9 mm
