4.9 19
19 Review(s)
| 8 answered questions
Model: CISCO1921/K9, Cisco 1921 Router ISR G2
Detail: Cisco 1921 Modular Router, 2 GE, 2 EHWIC slots, 512DRAM, IP Base
List Price: US$1,195.00
Price: $466.00
You save: US$729.00 (61% OFF)
Condition: Brand New Sealed
Availability: In stock
Express Shipping to United States Ashburn VA,
2-6 Days, via DHL, FedEx, EMS, etc. ?
If you finish the payment today,
your order will arrive within the
estimated delivery time.
US$ 466.00 In stock Brand New Sealed

CISCO1921/K9 SMARTnet Service Tool

Order Cisco SMARTnet Warranty? Fast Quote Now

Ask Our Experts

Live Chat | Email

  • +1-626-239-8066 (USA)
  • +852-3174-6166 (HK)
  • +852-3050-1066 (Fax)
Get Quotes up to
2x Faster
Project Inquiry

Overview (CISCO1921/K9)

The Cisco 1921 Router, which Memory and Flash Memory can't upgrade, is designed for branch offices.

Quick Specs

Figure 1 shows the front view of Cisco Router 1921/K9.


Table 1 shows the Quick Specs of the CISCO1921/K9.

Product Code


Rack Units



2 integrated 10/100/1000 Ethernet ports: GE0/0&GE0/1

Expansion Slot(s)

2 enhanced High-Speed WAN Interface Card (EHWIC) slots


512 MB/512 MB

Flash Memory

256 MB/256 MB


1.75 x 13.5 x 11.5 in.

Package Weight

5.41 Kg

Product Details

Figure 2 shows the statue LEDs, on the front panel of the 1921/K9, including three statues: SYS, ACT and PoE.

Cisco 1921/K9 router front panel

Table 2 shows the front panel LED area description.





Solid green

Solid green indicates normal operation.

Blinking green

System is booting or is in ROM monitor mode.


System error.


Power is off or system board is faulty.



Solid or blinking when any packets are transmitted or received on any WAN or LAN, or when monitoring system activity.



PoE is available.


Power supply is not supplying PoE power.

Figure 3 shows the back panel of the CISCO1921/K9.

Cisco 1921/K9 router back LED


① Flash LED                                      ⑥ Baud reset

② EN (USB serial console port)     ⑦ Ground connector

③ EN(RJ-45 console port)              ⑧ On/Off switch

④ S (Speed)                                      ⑨ USB port

⑤ L (Link)                                           ⑩ Kensington security slot                        

Table 3 shows the back panel LED area description.





Flash LED


Blinking means software is accessing the internal USB Flash (eUSB) device.

Back Panel


Initialized with error.

EN (USB serial console port)


The USB console port is active.

Back Panel


console port)


The RJ-45 console port is active.

Back Panel

S (Speed)

1 blink + pause

GE port operating at 10 Mb/s.

Back Panel

2 blink + pause

GE port operating at 100 Mb/s.

3 blink + pause

GE port operating at 1000 Mb/s.

L (Link)


GE link is established.

Back Panel


No GE link is established.

Figure 4 shows the ports and slots on the back panel of Cisco 1921/K9.

Cisco 1921/K9 router back slot


① EHWIC slot                                  ⑤ USB serial port

② Auxiliary port                               ⑥ RJ-45 serial console port

③ GE 0/0(down)and 0/1(up)    ⑦ USB port

④ Input power connector               ⑧ POE

* Cisco 1921/K9 supports 1 integrated EHWIC slots for flexible configurations. It supports two modules:

1. 1 double wide HWIC-D or single wide EHWIC/HWIC module or 2 single wide EHWIC/HWIC module.
2. High-speed USB 2.0 ports enable another mechanism secure token capabilities and storage.

Figure 5 shows the unboxing view of CISCO1921/K9.


Recommended Cards and Licenses

Table 4 shows recommended EHWIC, HWIC, VWIC cards and licensesfor this router.







Cisco 1900, 2900, 3900 Router EHWIC WAN Card EHWIC-1GE-SFP-CU


Four port 10/100/1000 Base-TX Gigabit Ethernet switch interface card for Cisco 1900 2900 3900 Routers





HWIC two routed port Cisco Router High-Speed WAN Interface card


1-Port Serial WAN Interface Card Cisco Router High-Speed WAN Interface card


2-Port Serial WAN Interface Card Cisco Router High-Speed WAN Interface card




Cisco Voice/WAN Card VWIC3-1MFT-T1/E1


Cisco Voice/WAN Card VWIC3-2MFT-T1/E1


Cisco Voice & WAN T1/E1 interface moudle VWIC3-1MFT-G703


Cisco Voice/WAN Card VWIC3-2MFT-G703



Cisco 1900 IOS License L-SL-19-DATA-K9= Data E-Delivery PAK for Cisco 1900


Security License for Cisco 1900


AppX License with; DATA and WAAS for Cisco 1900 Series

Datasheet Download

Cisco 1921 Series Router Datasheet.pdf

Get More Information

Do you have any question about the Cisco 1921/K9 router?

Contact us now via Live Chat or


Specification (CISCO1921/K9)

CISCO1921/K9 Specification

Services and Slot Density

Embedded hardware-based cryptography acceleration (IPsec + SSL)


RJ-45 onboard LAN/WAN 10/100/1000 ports


EHWIC slots


Doublewide EHWIC slots (use of a doublewide EHWIC slot will consume 2 EHWIC slots)


Cisco Integrated Services Module (ISM) slots


Memory (DDR2 DRAM): Default/maximum

512 MB/512 MB

USB flash memory (internal): Default/maximum

256 MB/256 MB

External USB flash-memory slots (Type A)


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


Serial console port (up to 115.2 kbps)


Serial auxiliary port (up to 115.2 kbps


Integrated power supply

AC and DC power-supply models

Power-supply options

POE (external) - on AC models only

Redundant-power-supply support


Power Specifications

AC input voltage

100-240V ~

AC input frequency

47-63 Hz

AC input current range AC power supply (maximum) (amps)


AC input surge current


Typical power (no modules)


Maximum power capacity with AC power supply


Maximum power capacity with PoE power supply (platform only)


Maximum PoE device power capacity with PoE power supply


DC power input

32-60 VDC, 4A, positive or negative, single source

DC input wire size

AWG 14 (2.0 mm2)

Safety ground-wire size

AWG 14 (2.0 mm2), minimum

Wire terminal (lug)

Amp/Tyco No.32957

Overcurrent protection

20A maximum

Physical Specifications

Dimensions (H x W x D)

1.75 x 13.5 x 11.5 in. (4.45 x 34.29 x 29.21 cm)

Rack height

1 rack unit (1RU)

Rack-mount 19 in. (48.3 cm) EIA


Wall-mount (refer to installation guide for approved orientation)


Package Weight

11.9 lb (5.41 Kg)

Weight: With AC power supply (no modules)

6.75 lb (3.06 Kg)

Weight: With PoE power supply (no modules)

7.5 lb (3.4 Kg)


Back to sides

Environmental Specifications

Operating Conditions

Temperature: 5906 ft (1800m) maximum altitude

32-104°F (0-40°C)

Temperature: 9843 ft (3000m) maximum altitude

32-77°F (0-25°C)


10,000 ft (3,000m)


10 to 85% relative humidity (RH)

Acoustic: Sound pressure (typical/maximum)

32.99/58.33 dBA

Acoustic: Sound power (typical/maximum)

41.99/67.22 dBA

Transportation and Storage Conditions


-40 to 158°F (-40 to 70°C)


5 to 95% RH


15,000 ft (4,570m)

Regulatory Compliance


UL 60950-1

CAN/CSA C22.2 No. 60950-1

EN 60950-1

AS/NZS 60950-1

IEC 60950-1


47 CFR, Part 15

ICES-003 Class A

EN55022 Class A

CISPR22 Class A

AS/NZS 3548 Class A


EN 300-386

EN 61000 (Immunity)

EN 55024, CISPR 24





ANSI T1.101

IEEE 802.3

RTTE Directive


Faq (CISCO1921/K9)

Please urgently confirm that this Router CISCO1921/K9 has BGP (Border Gateway Protocol).

YES, BGP is supported by almost all Cisco Routers.

Cisco 1921 CAN support Vwic2-2MFT-T1/E1?


The 1900 series routers which IOS supports IP SLA?

The dedicated or SLAs router is used exclusively for Cisco IOS IP SLA operations and is connected to the edge routers to simulate the customer network traffic. It is typically a Cisco 1900, 2800, 2900, 3800, 3900 or 7200 Series Router.

I have a 1921 router. Using usb cable I can connect to the console but cannot get the router into rommon mode. I saw a post for a 1941 router where you can remove the flash to get it into rommon mode, but the 1921 flash cannot be removed. I am using Mac terminal and screen command but am not able to send break signal. would love to know if it’s possible.

I think you can. The CF is "hidden" behind a dust cover. The slots are located at the BACK of the unit, to the left. The back is where the ports and EHWIC slots are.

The problem i'm running into is all the sample configs for Cisco 1921 sample working config for VDSL with a VA-DSL-A card, i'm finding are for much older code, i need it for a 1921 with version 15.2(3)T.

Hi, I believe you have an EHWIC-VA-DSL-A card installed on the C1921 device. The sample configuration for the same would be as follows, 1. Configure the Controller, 2. Configure the Ethernet interface & its sub-interface, 3. Configure the Dialer interface and as per you requirements, you can configure the Authentication, IP addressing etc.


If I purchased a Cisco ISR G2 router on Cisco IOS Software Release 15.0(1) M before the limitation was imposed, what should I do? And should I need to upgrade my Cisco IOS Software?

Assuming that you already have purchased the securityk9 package for encryption, you must purchase a HSEC-K9 license as a spare.

Why do I need to purchase the SEC-K9 license as a spare?

If you purchase a Cisco ISR G2 chassis and later decide to turn on security features, you must buy a SEC-K9 license. The administrator must download the license to the router and follow the license installation instructions that come with the license to be able to use the security features on the router.

On the Cisco ISR G2 routers with the SEC-K9 license, what tunnel count and performance throughput are available?

The SEC-K9 permanent licenses apply to the Cisco 1900, 2900, and 3900 ISR G2 platforms; these licenses limit all encrypted tunnel counts to 225 tunnels maximum for IP Security (IPsec), Secure Sockets Layer VPN (SSL VPN), a secure time-division multiplexing (TDM) gateway, and secure Cisco Unified Border Element (CUBE) and 1000 tunnels for Transport Layer Security (TLS) sessions. The SEC-K9 license limits encrypted throughput to less than or equal to 85-Mbps unidirectional traffic in or out of the ISR G2 router, with a bidirectional total of 170 Mbps. This requirement applies for the Cisco 1900, 2900, and 3900 ISR G2 platforms.

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:

Deliver to port: is responsible for transporting goods to port. All subsequent customs and transportation fees are the
responsibility of the buyer. Router-switch will recommend trustworthy local freight forwarders to can facilitate the progress under buyer's permission and at buyer's expense.

Deliver to door: will quote all destination charge prior once we have confirmed order. is responsible for transporting goods to door after you have made the payment.

Payment Methods

Paypal Master Card Visa
Discover American
Wire Transfer eCheck WestUnion


100% Low Price Guarantee: provides high-quality products at low wholesale prices

100% Quality Assurance:

All items are ORIGINAL and GENUINE only.
Item conditions are "New Sealed" or "Used / Refurbished".
Used & refurbished items are fully tested with good conditions by Cisco-certified Engineers.

Free CCIE Technical Support:

Our FREE Cisco CCIE Expert Consultancy Support is over the phone, by chat, by email or by login remotely.

100% Money Back Guarantee:

You can contact our customer service team to exchange or return any product that you bought from us.

Flexible Secure Payment & Shipment:

Verified authorization: Mcafee Secure, VeriSign Secured

Return Material Authorization (RMA) Process

Standard Hardware Warranty Policy:

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

The Support Contacts:

If your Cisco products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.


Customer Reviews

4.8 5
4.8 (19 reviews)
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars

Share your thoughts with other customers?

Posted on 6/20/2017
Verified Buyer
Very good!

I need a router for my notebook and my phone. This router is exactly suit for me, and the price is good. The after-service is patient to teach me to set up. It is really very good!

Posted on 2/6/2017
Verified Buyer
Fast and great throughout for a large house!

We have a three stories home and always need better throughput for the wireless usage, since the router is on the third floor while the TV is on the first floor. Guess what this wonderful router with #1 consumer reports rating did for us? Awesome quality Netflix watching on our 4K TV! We love this router. Setup was a breeze, and it is working great! Highly recommended!

Posted on 10/28/2016
Verified Buyer

My friend introduce to me and their professional service will make our business long-term

Posted on 10/12/2016
Verified Buyer
Cisco 1921 router, good product

I'd like to find a router for my office, just a small, cheap and useful one. This 1921 is only 1U and its functions are helpful. Now the router has operated perfectly in my office. Thanks for your services.

Posted on 3/11/2016
Verified Buyer
Good Services

Their sellers are professional and gave me pretty well suggestion.

Posted on 7/30/2015
Verified Buyer
packing box

Good packing box. They double packed and original new sealed cisco device is protected very well!

Posted on 7/9/2015
Verified Buyer
Smartnet service

Their 1 year warranty save me 1 year smartnet service cost. After 1 year, I also can order smartnet service from them.

Posted on 4/17/2015
Verified Buyer
reliable supplier

after the payment, i got the DHL tracking No. of 1921 router shipment within 1 working day.
really very satisfied with your service.

Posted on 2/28/2015
Verified Buyer
Document confirmation

Before shipping, they always confirm shipping address and shipping invoice again. Also, very valuable advice on shipping documents

Posted on 9/28/2014
Verified Buyer
Cisco 1921 router

This ISR router is a modular router that we can upgrade if we need. I think it is suitable for our office because we may expand our business in the future.

Posted on 10/8/2013
Verified Buyer

Fast transmission speed, built-in firewall. Price is better than others I found.

Posted on 10/7/2013
Verified Buyer
cisco1921 k9

I configured the device and it just works. Cisco has great products, not too nice on the budget but reliable.

Posted on 9/23/2013
Verified Buyer
Great Cisco 1921

Fast shipping, great router, thank you!

Posted on 8/7/2013
Verified Buyer
Cisco 1921

Just purchased a new 1921 for my \"old\" 876. The 876 was equipped with a ADVIPSERVICESK9 License, is there any way to transfer it to the 1921 (which only has a IPBase License)?

Posted on 5/6/2012
Verified Buyer

A++ Supplier

Posted on 2/29/2012
Verified Buyer
ISDN connection

I am looking for a router to used for my home lab and this routers is just perfect for what I am looking for. Competitive price and exactly fits what I need to build my home lab. It has 4 modular slots and also upgradable to use 12.4 Cisco IOS with RAM upgradeable to 128MB. So far, this routers are working well for my CCNA certs and still be useful for my CCNP needs.

Posted on 1/23/2012
Verified Buyer
cisco 1921

This router inclued the IOS ??

Posted on 10/20/2011
Verified Buyer

i already use it................

Posted on 7/26/2011
Verified Buyer
Cisco 3640 Modular routers

I am looking for a router to used for my home lab and this routers is just perfect for what I am looking for. Competitive price and exactly fits what I need to build my home lab. It has 4 modular slots and also upgradable to use 12.4 Cisco IOS with RAM upgradeable to 128MB. So far, this routers are working well for my CCNA certs and still be useful for my CCNP needs.

You may also be interested in the following product(s)

Product Tags

Register now to get updates on promotions and coupons

We’ll never share your email address with a third-party. is neither a partner of nor an affiliate of Cisco Systems. Logos remain the property of the corresponding company.
Copyright @ 2002-2017 Router-switch Ltd. | HongKong Yejian Technologies Co., Ltd | All Rights Reserved.