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Name: |
C1921-4SHDSL/K9 |
Description: | Cisco 1921 4-pair SHDSL Bundle, HWIC-4SHDSL, IP Base Lic |
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GTIN: | 882658357787 ![]() |
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C1921-4SHDSL/K9 Overview
C21-4SHDSL/K9 is a high-performance integrated services router built on a modular architecture that enables flexibility in deployment. It provides multiple power options with an AC power supply, supports dedicated WAN connectivity via its integrated SHDSL port, and features four built-in LAN RJ-45 interfaces to ensure seamless connectivity for enterprise branch environments.
Designed to support critical integrated services such as VPN, firewall, and voice integration, this device offers robust performance with a throughput capacity of approximately 0.075 Gbps and built-in redundancy features for secure, reliable operations. Its modular expansion capability using EHWIC and NIM slots, combined with comprehensive routing protocols and management features, make it well suited for small business to enterprise use cases.
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C1921-4SHDSL/K9 Specifications
Product Type | Enterprise Router |
VPN Support | IPSec / SSL VPN / DMVPN |
Power Source | AC Power Supply |
Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing |
Broadband | DSL |
Architecture | Modular |
WAN Configuration | WAN |
WAN Ports | 1 WAN |
LAN Ports | 4 LAN Ports |
Ethernet Technology | 10/100 |
Wi-Fi Standard | N/A |
Connectivity Type | Wired |
Network Protocols | IPv4 / IPv6 |
Remote Management | SSH / Telnet / SNMP |
Compliance Standards | FCC / CE / RoHS |
Wireless Support | No |
Speed/Capacity | N/A |
Firewall Features | Yes |
Features | VPN / IPv6 Compatible / Firewall |
Use Case | Enterprise / Small Business |
Management | Managed |
Form Factor | Desktop |
Integrated Services | Voice / Video |
High Availability Support | Not Supported |
Safety | N/A |
EMC | N/A |
Telecom | N/A |
Throughput Capacity | 0.075 Gbps |
QoS Features | Supported |
Built-in Security Features | Firewall / Intrusion Prevention |
Expansion Slots | EHWIC / NIM |
Modular Slots Available | 2 Slots |
Stacking Capability | No |
5G Support | No |
Memory | 512 MB |
Flash Memory | 256 MB |
Interface Ports | RJ-45 |
Power | 65 W |
Device Type | Router |
Product Name | Cisco 1921 Integrated Services Router with 4-Port SHDSL |
Height | 1.73 inches |
Width | 17.32 inches |
Depth | 11.10 inches |
Weight | 8 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.







Product Comparison Table
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Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Router Module | Enterprise Router |
Connectivity Type | Wired | Wired | Wired | Wired | Wired |
Broadband | DSL | N/A | DSL | N/A | N/A |
Power Source | AC Power Supply | AC Power Supply | AC Power Supply | Redundant | AC Power Supply / Redundant |
Architecture | Modular | Fixed | Fixed | Modular | Modular |
WAN Configuration | WAN | WAN | Dual WAN | WAN | Dual WAN |
WAN Ports | 1 WAN | 1 WAN | 2 WAN | Modular WAN | 2 WAN |
LAN Ports | 4 LAN Ports | 4 LAN Ports | 2 LAN Ports | Modular LAN | 8 LAN Ports |
Ethernet Technology | 10/100 | 10/100 | 10/100 | 10G | 10/100/1000 |
Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
Wireless Support | No | No | No | No | No |
Speed/Capacity | N/A | N/A | N/A | 10gb | Gigabit |
Routing Protocols Supported | - | - | - | - | - |
VPN Support | IPSec / SSL VPN / DMVPN | IPSec VPN / SSL VPN | IPSec / SSL VPN / N/A | IPSec / SSL VPN | IPSec / SSL VPN |
Firewall Features | Yes | Yes | Yes | No | Yes |
Features | VPN / IPv6 Compatible / Firewall | VPN / Firewall | Voice / VPN / IPv6 Compatible / Firewall | VPN, Modular, High Throughput, Redundancy | VPN, IPv6 Compatible, Firewall |
Use Case | Enterprise / Small Business | Enterprise | Enterprise / Small Business | Enterprise | Enterprise |
Management | Managed | Managed | Managed | Managed | Managed |
Form Factor | Desktop | Desktop | Rack-mount / Desktop | Chassis | Rack-mount |
Integrated Services | Voice / Video | Voice | Voice / N/A | VPN | Voice, Video, WAN Optimization |
High Availability Support | Not Supported | Supported | Not Supported | Supported | Supported |
Throughput Capacity | 0.075 Gbps | 0.035 Gbps | 25 Mbps | 10 Gbps | 2 Gbps |
QoS Features | Supported | Supported | Supported | Supported | Supported |
Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Intrusion Prevention | Firewall, Intrusion Prevention |
Expansion Slots | EHWIC / NIM | N/A | NIM | SFP+ | NIM, SFP+ |
Modular Slots Available | 2 Slots | N/A | 2 Slots | N/A | 2 Slots |
Stacking Capability | No | No | No | No | Yes |
5G Support | No | No | No | No | No |
Memory | 512 MB | 256 MB | 256 MB | 512 MB | 2 GB |
Flash Memory | 256 MB | 128 MB | 128 MB | 256 MB | 512 MB |
Interface Ports | RJ-45 | RJ-45 | RJ-45 | SFP+ | RJ-45, SFP+ |
Device Type | Router | Router | Router | Router Module | Router |
Product Name | Cisco 1921 Integrated Services Router with 4-Port SHDSL | Cisco 857 Integrated Services Router | CISCO1841-2SHDSL | 7609-S323B-10G-P | JF285A Enterprise Router |
Height | 1.73 inches | N/A | N/A | N/A | 3 inches |
Width | 17.32 inches | N/A | N/A | N/A | 17 inches |
Depth | 11.10 inches | N/A | N/A | N/A | 16 inches |
Weight | 8 lbs | N/A | N/A | N/A | 15 lbs |
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