Cisco 4221 Integrated Services router is design to deliver advanced services to the small enterprise branch environment. It delivers 35Mbps thoughtput by default. With pay-as-you-grow performance, you can increase forwarding capacity to 75Mbps by buying licenses.
 
Quick Specs of ISR4221/K9
Product Code
Cisco ISR4221/K9
Aggregate Throughput
35 Mbps to 75 Mbps
Total onboard WAN or LAN 10/100/1000 ports
2
RJ-45-based ports
2
SFP-based ports
1
NIM (Network Interface Modules) slots
2
Onboard ISC slot
No
Default memory double-data-rate 3 (DDR3) error-correction-code
(ECC) DRAM (Combined control/services/data planes)
4 GB
Flash Memory
8 GB
Power-supply options
External AC only
Rack height
1 RU
Dimensions (H x W x D)
1.72 x 12.7 x 10 in (43.7 x 322.6 x 254 mm)
Weight with AC PS (no modules)
7.1 lb (3.22 kg)