Quick Specs of the Cisco 2911/K9.
Product Code Cisco 2911/K9
Rack Units 2RU
Interfaces 3 integrated 10/100/1000 Ethernet ports (RJ-45 only)
Expansion Slot(s) 1 service module slot
1 Internal Service Module slot
2 onboard digital signal processor (DSP) slots
4 enhanced high-speed WAN interface card slots
RAM 512 MB (installed) / 2 GB (max)
Flash Memory 256 MB (installed) / 8 GB (max)
Dimensions 43.8 cm x 30.5 cm x 8.9 cm
Package Weight 16.15 Kg