Cisco Intergrated Services router ISR4321-V/K9 Voice Bundle is design to deliver advanced VOIP services to the small enterprise branch environment. Cisco ISR 4321 integrates 2 dual mode Gigabit Ethernet ports and PVDM4 DSP for voice and video services, two network modules, one integrated services card slot, 4GB DDR3 Dream and 4 GB flash memory.Cisco ISR4321 delivers 50Mbps thoughtput by default, with pay-as-you-grow performance, you can increase forwarding capacity to 100Mbps when needed, so the platform performance growth with your business, you only pay for the performance you need. According to security, ISR4321 support most advanced encryption - IPsec, SSL VPN and flex VPN.

ISR4321-V/K9 Specification
DescriptionCisco ISR4321-V/K9 (2GE,2NIM,4G FLASH,4G DRAM,Voice Bundle)
Aggregate Throughput50 Mbps to 100 Mbps
Total onboard WAN or
LAN 10/100/1000 ports
RJ-45-based ports2
SFP-based ports1
Enhanced service-module slots0
Doublewide service-module slots0
NIM slots2
OIR (all I/O modules)Yes
Onboard ISC slot1
Default memory double-data-rate 3 (DDR3)
error-correction-code (ECC) DRAM
(Combined control/services/data planes)
4 GB
Maximum memory DDR3 ECC DRAM
(Combined control/services/data planes)
8 GB
Default memory DDR3 ECC DRAM (data plane)NA
Maximum memory DDR3 ECC DRAM (data plane)NA
Default memory DDR3 ECC DRAM
(control/services plane)
Maximum memory DDR3 ECC DRAM
(control/services plane)
Default flash memory4 GB
Maximum flash memory8 GB
External USB 2.0 slots (type A)1
USB console port -type B mini (up to 115.2 kbps)1
Serial console port - RJ45 (up to 115.2 kbps)1
Serial auxiliary port - RJ45
(up to 115.2 kbps)
Power-supply optionsExternal: AC and PoE
Redundant power supplyN/A
AC input voltage100 to 240 VAC autoranging
AC input frequency47 to 63 Hz
AC input current range, AC power supply
1.5 to 0.6A
AC input surge current90 A peak and less than 3 Arms per half cycle
Typical power (no modules) (watts)36
Maximum power with AC power supply (watts)125
Maximum power with PoE power supply
(platform only) (watts)
Maximum endpoint PoE power available from
PoE power supply (watts)

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