Cisco CISCO1921/K9 1921 Integrated Services Router


Product Line:
Integrated Services Routers
Form Factor:
Rack Mountable /Wall Mountable
Rack Units:
1 U
IP Base
Adding to cart… The item has been added

Cisco CISCO1921 Gigabit Integrated Services Router (ISR)

 All Cisco 1900 Series Integrated Services Routers offer embedded hardware encryption acceleration, optional firewall, intrusion prevention, and advanced security services. In addition, the platforms support the industry’s widest range of wired and wireless connectivity options such as Serial, T1/E1, xDSL, Gigabit Ethernet, and Third-Generation (3G) wireless.


10/100/1000 WAN Ports: 2

RJ-45 Based Ports: 2

SFP Based Ports: 0

SM Slots: 0

Double-wide SM Slots: 0

EHWIC Slots: 2

Double-Wide EHWIC Slots: 1 (use of a double-wide EHWIC slot will consume two EHWIC slots)

ISM Slots: 1

Compact Flash: 256 MB

Power Supply: AC

Power Cord: Yes

Console Cable: Yes


IGS offers a variety of used and refurbished Cisco Routers, not sure what you need? Please contact us.

Cisco 1921 Series Integrated Services Routers

Product Overview

Cisco 1900 Series Integrated Services Routers (ISRs) build on 25 years of Cisco innovation and product leadership. The new platforms are architected to enable the next phase of branch-office evolution, providing rich-media collaboration to the branch office while maximizing operational cost savings. The Cisco Integrated Services Routers Generation 2 (ISR G2) platforms are future-enabled with multicore CPUs, Gigabit Ethernet switching with enhanced Power over Ethernet (PoE), and new energy monitoring and control capabilities that enhance overall system performance. Additionally, a new Cisco IOS Software Universal image enables you to decouple the deployment of hardware and software, providing a stable technology foundation that can quickly adapt to evolving network requirements. Overall, the Cisco 1900 Series offers exceptional Total Cost of Ownership (TCO) savings and network agility through the intelligent integration of market-leading security, unified communications, wireless, and application services.

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)


Weight: With AC power supply (no modules)

6.75 lb

Weight: With PoE power supply (no modules)

7.5 lb


Back to sides