Cisco 2900 Series Integrated Services Routers
   Services-Rich Router for Medium-Sized Branch
    
2900 Series
   
   Cisco 2901 Integrated Services Router
     - 2 integrated 10/100/1000 Ethernet ports
 - 4 enhanced high-speed WAN interface card slots
 - 2 onboard digital signal processor (DSP) slots
 
Cisco 2911 Integrated Services Router
     - 3 integrated 10/100/1000 Ethernet ports (RJ-45 only)
 - 1 service module slot
 - 4 enhanced high-speed WAN interface card slots
 
Cisco 2921 Integrated Services Router
     - 3 Integrated 10/100/1000 Ethernet ports with 1 port capable of RJ-45 or SFP connectivity
 - 4 Enhanced High-Speed WAN Interface Card (EHWIC) slots
 - Fully integrated power distribution to modules supporting 802.3af Power over Ethernet (PoE) and Cisco Enhanced PoE
 
Cisco 2951 Integrated Services Router
     - 3 integrated 10/100/1000 Ethernet ports with 1 port capable of RJ-45 or SFP connectivity
 - 4 Enhanced High-Speed WAN Interface Card slots
 - 1 internal service module slot for application services
 
