Cisco ISR4321-SEC/K9

4.9 11
11 Review(s)
| 10 answered questions
Model: Cisco ISR4321-SEC/K9 (2GE,2NIM,4G FLASH,4G DRAM, Security Bundle)
Detail: 50Mbps-100Mbps system throughtput, 2 WAN/LAN ports, 1 SFP port, multi-Core CPU,2 NIM, Security, Voice, WAAS, Intelligent WAN, OnePK, AVC
List Price: US$2,995.00
Price: $1,498.00
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Cisco ISR4321-SEC/K9 SMARTnet Service Tool

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Overview (Cisco ISR4321-SEC/K9)

Cisco ISR4321-SEC/K9 is the Cisco ISR4321/k9 router with Security Bundle. Its other specifications are the same as ISR4321/k9.

Quick Specs

Figure 1 shows the appearance of Cisco ISR4321-SEC/K9.


Table 1 shows the Quick Specs.

Product Code

Cisco ISR4321-SEC/K9


Security Bundle

Aggregate Throughput

50 Mbps to 100 Mbps

Total onboard WAN or LAN 10/100/1000 ports


RJ-45-based ports


SFP-based ports


NIM (Network Interface Modules) slots


Onboard ISC slot



4 GB (default) / 8 GB (maximum)

Flash Memory

4 GB (default) / 8 GB (maximum)

Power-supply options

External: AC and PoE

Rack height

1 RU

Dimensions (H x W x D)

44.55 mm x 369.57 mm x 294.64 mm

Package Weight

9.19 Kg

Product Details

Figure 2 shows the LEDs on the front panel of the Cisco ISR4321-SEC/K9.

CISCO ISR4321-SEC/K9 Front Panel

· There are eight LEDs on the front panel: POE0, FLASH, TEMP, PWR, SSD, ISC, FAN, and STAT.

Figure 3 shows the back panel of Cisco ISR4321-SEC/K9.

CISCO ISR4321-SEC/K9 Back Panel



GE 0/0/1 (copper cable) port

Power switch

GE 0/0/0 SFP (fiber-optic) port

Power input connector

NIM slots

GE “MGMT” port (with USB port below)

GE 0/0/0 RJ-45 (copper cable) port

USB Type B mini port

Auxiliary port

Console port

· The NIMs support 2 single-wide or 1 double-wide.

Figure 4 shows the Security Bundle Function of Cisco ISR4321-SEC/K9.

Security Bundle Functions

The Modules, Cards and Accessories

Table 2 shows some recommended modules, cards, and cables.




Smart Serial Cables


Cisco CAB-SS-449FC RS-449 Cable, DCE Female to Smart Serial, 10 Feet

Console and Auxillary Cables


Cisco CAB-CONSOLE-RJ45 Console Cable 6ft with RJ45 and DB9F


Cisco CAB-CONSOLE-USB Console Cable 6 ft with USB Type A and mini-B

Network Interface Modules


Cisco Multiflex Trunk Voice and WAN network interface module


Cisco Fourth-Generation Multiflex Trunk Voice and WAN network interface module


Analog voice network interface card (ear and mouth)


Cisco Analog voice network interface card NIM-2FXS


Cisco Analog voice network interface card NIM-2FXS/4FXO

SFPs for On-Board GE Ports


Cisco GLC-LH-SMD 1000BASE-LX/LH SFP transceiver module, MMF/SMF, 1310nm, DOM


Cisco GLC-ZX-SMD 1000BASE-ZX SFP transceiver module, SMF, 1550nm, DOM


Cisco GLC-SX-MMD 1000BASE-SX SFP transceiver module, MMF, 850nm, DOM

Compare to Similar Item






Security Bundle

Aggregate Throughput

50 Mbps to 100 Mbps

50 Mbps to 100 Mbps

Total onboard WAN or

LAN 10/100/1000 ports



RJ-45-based ports



SFP-based ports



Enhanced service-module slots



NIM slots



Onboard ISC slot



Rack height



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Specification (Cisco ISR4321-SEC/K9)

Cisco ISR4321-SEC/K9 Specification


Cisco ISR4321/K9 with Security Bundle

Aggregate Throughput

50 Mbps to 100 Mbps

Total onboard WAN or LAN 10/100/1000 ports


RJ-45-based ports


SFP-based ports


Enhanced service-module slots


Doublewide service-module slots


NIM slots


OIR (all I/O modules)


Onboard ISC slot


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)


Maximum memory DDR3 ECC DRAM (data plane)


Default memory DDR3 ECC DRAM (control/services plane)


Maximum memory DDR3 ECC DRAM (control/services plane)


Default flash memory

4 GB

Maximum flash memory

8 GB

External USB 2.0 slots (type A)


USB console port -type B mini (up to 115.2 kbps)


Serial console port - RJ45 (up to 115.2 kbps)


Serial auxiliary port - RJ45

(up to 115.2 kbps)


Power-supply options

External: AC and PoE

Redundant power supply


AC input voltage

100 to 240 VAC autoranging

AC input frequency

47 to 63 Hz

AC input current range, AC power supply (maximum)

1.5 to 0.6A

AC input surge current

90 A peak and less than 3 Arms per half cycle

Typical power (no modules) (watts)


Maximum power with AC power supply (watts)


Maximum power with PoE power supply (platform only) (watts)


Maximum endpoint PoE power available from PoE power supply (watts)



Faq (Cisco ISR4321-SEC/K9)

What memory upgrade options are available on the Cisco ISR4321-SEC/K9?

The 4000 Series has separate data and control-plane memory. The control-plane memory comes with 4 GB as the default, and is upgradable up to 16 GB based on various platforms. The data-plane memory comes with 2 GB as the default and is not currently upgradable.

How many dual inline memory modules (DIMMs) does the Cisco ISR4321-SEC/K9 have?

The Cisco ISR4321-SEC/K9 has one DIMM.

In the case of control-plane memory, can I put a 4-GB DIMM in one slot and a 2-GB DIMM in the other slot?

No. the 4000 Series expects both DIMM slots to have the same size of memory; as an example, it must have either 4-GB memory in both slots for a total of 8 GB of control-plane memory, or 2-GB memory in both slots, for a total of 4 GB of control-plane memory. This setup is necessary because these platforms interleave memory devices for faster access.

Do all four ports with both RJ-45 and Small Form-Factor Pluggable (SFP) front panel Gigabit Ethernet (FPGE) connections support failover?

Yes. You can configure auto-failover on any of the front-panel ports with both RJ-45 and SFP connections. When auto-failover is configured, if the primary interface type fails, either RJ-45 or SFP, the other media type becomes active and allows traffic to continue over the backup physical connection. In this scenario, the backup connection needs to be connected with the same speed and duplex as the primary connection.Note that the auto-failover feature as described does support one Gigabit Ethernet interface acting as a backup to another. The two physical connections available on a single Gigabit Ethernet interface simply provide failover if a link fails.

Is MDI crossover (MDI-X) supported on the four onboard RJ-45 Ethernet interfaces?


What type of backplane is used between components in the Cisco 4000 Series?

The 4000 Series uses multigigabit fabric (MGF) for Layer 2 connectivity between the modules. On the 4451-X, the MGF can provide either 2 Gbps to all NIM slots or up to 10 Gbps to all SM-X slots. The MGF is completely nonblocking and can forward in excess of 50 Gbps.

 What power cables work with the Cisco 4000 Series?

All power-supply options for the 4000 Series use a standard IEC C13 connector. No special IEC C15 cord is necessary for the Power over Ethernet (PoE) power supply because higher-efficiency power supplies (85 percent) are used in the 4000 Series. This cord thus helps lower the maximum current the power supplies can draw.

Are the PoE interfaces PoE+?

PoE+ is available on the new SM-X Ethernet switch modules as well as on the FPGE ports.

What type of Cisco IOS Software is available for the Cisco 4000 Series?

The Cisco 4000 Series runs the same feature-rich Cisco IOS XE Software as the current-generation Cisco ASR 1000 Series. By using the same software release as the Cisco ASR 1000 Series, the Cisco 4000 Series  benefits from a rich history of branch-office feature development as well as ongoing feature development.

What software options are available for the Cisco 4000 Series?

One change that customers like is the Cisco IOS Software images available on the ISR G2 routers, which reduce numerous software images into one. Therefore, the Cisco 4000 Series has a single Cisco IOS XE Software image. This image is known as a universal image. It contains all features and functions in a single software image. You can selectively enable functions within this universal image by using Cisco Software Activation Licenses that activate capabilities within that image. You now need only a single Cisco IOS XE Software image for the router regardless of the features or functions you need for any particular area in your network.

Shipping & Payment


Cargo will be delivered within 1 day after payment arrived. Tracking Number will be offered once delivery done.

Delivery OptionsEstimated Delivery Time
DHL 2-4 business days
Fedex 2-4 business days
Hong Kong EMS 5-10 business days
Hong Kong Air Parcel 10-20 business days
By Sea 10-20 business days


Above mentioned information are just for your reference only,we will keep you posted for the tracking delivery schedule.There are two delivery options available for by air and by sea:

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Return Material Authorization (RMA) Process

Standard Hardware Warranty Policy:

Original new sealed Cisco product: 1 Year
Used Cisco product: 3 Month

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Customer Reviews

4.9 5
4.9 (11 reviews)
5 Stars
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1 Stars

Share your thoughts with other customers?

Posted on 11/20/2016
Verified Buyer

Can get global smartnet here. Great!

Posted on 11/18/2016
Verified Buyer
EMS Shipping

Need 1 unit to Russia, Nancy suggested shipment by EMS.

Posted on 11/16/2016
Verified Buyer

Just orderd 2 unit, was told goods would reach within 2 days.

Posted on 11/13/2016
Verified Buyer
SEC router

ISR4000 router, with SEC license, very cheap.

Posted on 11/10/2016
Verified Buyer
Very patient

Ask so many questions. The staff is very patient to me.

Posted on 4/25/2016
Verified Buyer
ISR 4321 vs. Cisco 2911/2921

ISR 4321 is suggested for migration from the existing popular Cisco 2911 and 2921 routers.

Posted on 4/15/2016
Verified Buyer

The shipping is so fast that we received the Cisco ISR4321-SEC/K9 two days later. It worked perfectly. Besides, the price are also very good. I will definitely use this company again.

Posted on 4/13/2016
Verified Buyer
ISR4321-SEC/K9-nice shopping

Bought this ISR4321-SEC/K9. nice shopping.

Posted on 3/28/2016
Verified Buyer
Cisco ISR 4000, any new VPN supported

Wow it supports all current and any new VPN technologies such as Easy VPN, Group Encrypted Transport VPN, Dynamic Multipoint VPN (DMVPN), and Cisco IOS FlexVPN that are supported on the ISR G2 or ASR 1000 Series

Posted on 10/11/2014
Verified Buyer
Cisco ISR4321-SEC/K9, security

security functionality, fit us.

Posted on 11/11/2013
Verified Buyer
Cisco ISR4321-SEC/K9

chose this one, not disappointed.

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