Cisco 4000 Router -Model Comparison
    Cisco ISR Router ISR4451-X/K9

ISR4451-X/K9
ISR4431/K9

ISR4431/K9
ISR4351/K9

ISR4351/K9
    Unit Price US$5,760.00 US$3,520.00 US$2,800.00
    Feature 4451 4431 4351
    Form factor 2 RU 1 RU 2 RU
    Integrated
WAN ports
2 PoE GE / SFP 2 PoE GE / SFP 2 PoE GE / SFP
2 GE / SFP 2 GE / SFP 1 GE/ SFP
    Performance 1 Gbps 500 Mbps 200 Mbps
    Network Interface
Modules (NIM)
3 3 3
    Cisco Unified
Communications
Manager Express
support
Up to 450 Up to 350 Up to 250
    Recommend
License
SL-44-SEC-K9 SL-44-SEC-K9 SL-4350-SEC-K9
SL-44-UC-K9 SL-44-UC-K9 SL-4350-UC-K9
SL-44-APP-K9 SL-44-APP-K9 SL-4350-APP-K9
FL-44-PERF-K9 FL-44-PERF-K9 FL-4350-PERF-K9
    Recommend
NIM Module
NIM-1MFT-T1/E1 NIM-1MFT-T1/E1 NIM-1MFT-T1/E1
NIM-2CE1T1-PRI NIM-2CE1T1-PRI NIM-2CE1T1-PRI
NIM-4E/M NIM-4E/M NIM-4E/M
NIM-2FXS NIM-2FXS NIM-2FXS
NIM-2FXS/4FXO NIM-2FXS/4FXO NIM-2FXS/4FXO
    EOS infomation Migrate from Migrate from Migrate from
CISCO3945/K9
CISCO3925E/K9
CISCO3945E/K9
CISCO3925/K9
CISCO3945/K9
CISCO3925E/K9
CISCO3945E/K9
CISCO2951/K9
    1-Year warranty ISR4331/K9

ISR4331/K9
ISR4321/K9

ISR4321/K9
ISR4221/K9

ISR4221/K9
    Unit Price US$1,320.00 US$718.00 US$562.00
    Feature 4331 4321 4221
    Form factor 1 RU 1 rack unit (RU) 1 rack unit (RU)
Desktop Desktop
    Integrated
WAN ports
1 GE / SFP 1 GE / SFP 1 GE / SFP
1 GE 1 GE 1 GE
1 SFP
    Performance 100 Mbps 50 Mbps 35 Mbps
    Network Interface
Modules (NIM)
2 2 2
    Cisco Unified
Communications
Manager Express
support
Up to 100 Up to 50 No
    Recommend
License
SL-4330-SEC-K9 SL-4320-SEC-K9 No
SL-4330-UC-K9 SL-4320-UC-K9
SL-4330-APP-K9 SL-4320-APP-K9
FL-4330-PERF-K9 FL-4320-PERF-K9
    Recommend
NIM Module
NIM-1MFT-T1/E1 NIM-2CE1T1-PRI NIM-1MFT-T1/E1
NIM-2CE1T1-PRI NIM-1MFT-T1/E1 NIM-ES2-4
NIM-4E/M NIM-4E/M NIM-ES2-8
NIM-2FXS NIM-2FXS
NIM-2FXS/4FXO NIM-2FXS/4FXO
    EOS infomation Migrate from Migrate from Migrate from
CISCO2911/K9
CISCO2921/K9
CISCO2901/K9 CISCO1921/K9
CISCO1941/K9