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)