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CISCO1921-T1SEC/K9
Cisco 1921 T1 Bundle incl. HWIC-1DSU-T1,256F/512D, SEC Lic
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CISCO1921-T1SEC/K9 is a high-performance enterprise router engineered with a fixed architecture that integrates T1/E1 capabilities and robust WAN/LAN interfaces to support secure branch connectivity. Designed to handle integrated services such as VPN, NAT, and firewall functions, it offers a trusted platform with dedicated hardware encryption, ensuring reliable security and efficient data flow in business-critical networks.
Optimized for small to medium-sized deployments, the CISCO1921-T1SEC/K9 features modular expansion via an EHWIC slot, flexible power options with an AC power supply, and comprehensive routing protocols including OSPF, EIGRP, and BGP. Its throughput, redundancy features, and built-in security make it ideal for secure remote access, voice/video integration, and cost-effective WAN optimization, meeting the needs of diverse enterprise use cases.
CISCO1921-T1SEC/K9 price is $1,206.00, a 47.5% saving from the Cisco list price of $2,295.00. CISCO1921-T1SEC/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CISCO1921-T1SEC/K9 for additional pricing. Browse the full Router Isr 1900 series or explore all Cisco products.
A regional bank deploys the Cisco 1921 T1 Bundle (CISCO1921-T1SEC/K9 with HWIC-1DSU-T1, 256F/512D, SEC License) to establish a dedicated T1 link between its branches and the data center. Integrated hardware encryption and 256-bit VPN accelerate secure transactions, meet FINRA compliance requirements and deliver sub-5 ms latency for real-time trading and customer service.
A national retail chain uses the Cisco 1921 T1 Bundle to aggregate credit card terminals over a primary MPLS link with a failover T1 circuit. The HWIC-1DSU-T1 interface and SEC License enforce AES256 encryption, ensuring PCI-DSS compliance, 99.99 % uptime for point-of-sale transactions and centralized audit logs for forensic reporting.
An energy provider installs the Cisco 1921 T1 Bundle at remote pump stations to support Supervisory Control And Data Acquisition (SCADA) traffic over a dedicated T1 line. The high-performance router with 512 concurrent VPN sessions and real-time QoS prioritization secures telemetry data, reduces network jitter and guarantees 24/7 visibility for operational control centers.
To get the detailed certification, please go to the Compliance Center.
 CISCO1921-T1SEC/K9 |  CISCO1941-SEC/K9 |  C1-CISCO1921/K9 |  CISCO1941-HSEC+/K9 |  C1921-3G-V-K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | N/A | N/A | N/A | N/A | 3G |
| Built-in Security Features | Firewall / Intrusion Prevention / IPSec | Firewall / Intrusion Prevention / VPN | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Encryption |
| Compliance Standards | FCC / CE / RoHS | FCC / CE / RoHS | FCC, CE, RoHS | FCC / CE | FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired / Ethernet | Wired |
| Depth | 6.45 inches | 12.7 inches | N/A | N/A | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | FCC Part 15 / CISPR22 | FCC / CE | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 Ethernet |
| Expansion Slots | EHWIC | EHWIC | EHWIC | EHWIC | EHWIC |
| Features | VPN / Firewall / IPSec / NAT / ACL | VPN / IPv6 Compatible / Firewall | VPN / VoIP / IPv6 Compatible / Firewall | VPN / Firewall / IPv6 Compatible | VPN, IPv6 Compatible, Firewall, Encryption |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Desktop | Desktop | Desktop | Desktop | Desktop |
| Height | 1.09 inches | 1.8 inches | N/A | N/A | N/A |
| High Availability Support | Not Supported | Not Supported | Not Supported | Not Supported | Supported |
| Integrated Services | Voice / Video | Voice / WAN Optimization | Voice | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | 2 LAN Ports | 2 LAN Ports | 4 LAN Ports | Modular LAN | 2 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 512 MB | 256 MB | 256 MB | 256 MB |
| Modular Slots Available | 1 Slot | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 / OSPF / EIGRP / RIP / BGP | IPv4 / IPv6 | IPv4, IPv6 | IP / TCP / UDP / OSPF / EIGRP / BGP / RIP / ICMP | IPv4, IPv6 |
| Power | 66 Watt | 65 W | 65 | 55W | 65 Watt |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco 1921 Integrated Services Router with T1/E1 | Cisco 1941 Integrated Services Router Security | C1-CISCO1921/K9 | CISCO1941-HSEC+/K9 | Cisco 1921 Integrated Services Router 3G Voice |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet / SSH / SNMP | Telnet / SSH / SNMP | Telnet, SSH, SNMP | CLI / SNMP / Telnet / SSH | SSH, Telnet, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / BGP / RIP / Static Routing |
| Safety | N/A | UL60950 / IEC60950 | UL, cUL | N/A | N/A |
| Speed/Capacity | 100 Mbps | N/A | N/A | N/A | 100 Mbps |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | TIA/EIA-568 | TIA/EIA | N/A | N/A |
| Throughput Capacity | 0.1 Gbps | 0.075 Gbps | 0.075 | 0.075 Gbps | 75 Mbps |
| Use Case | Business / Small Business | Business | Small Business | Enterprise / Small Business | Business, Branch Office |
| VPN Support | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / GRE / DMVPN | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN / DMVPN / FlexVPN |
| WAN Configuration | WAN | Dual WAN | Dual WAN | Dual WAN | WAN |
| WAN Ports | 1 T1/E1 Port | 2 WAN | 2 WAN | 2 WAN | 2 WAN Ports |
| Weight | 5.5 lbs | 15.7 lbs | N/A | N/A | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 8.73 inches | 17.3 inches | N/A | N/A | N/A |
| Wireless Support | No | No | No | No | No |
T1 performance is stable and predictable. Integrated security licensing makes this bundle very practical for legacy circuits.
Deployed in multiple branches with T1 lines. Reliability has been excellent, even under continuous operation.
A dependable choice for secure T1 connectivity. Configuration was simple for our experienced network staff.
Handles T1 traffic efficiently while maintaining strong security. Meets our long-term stability requirements.
Solid enterprise router for legacy WAN links. Performs reliably and integrates smoothly with existing Cisco setups.
The Cisco 1921 T1 Bundle (CISCO1921-T1SEC/K9) combines a Cisco 1921 ISR router, HWIC-1DSU-T1 interface module, 256 MB Flash/512 MB DRAM, and Security (SEC) license for secure T1 connectivity in branch networks.
The HWIC-1DSU-T1 module delivers native T1 CSU/DSU termination, supporting both channelized and unchannelized T1 for reliable WAN links at up to 1.544 Mbps.
The Cisco 1921 ISR offers up to 25 Mbps aggregate throughput, 256 MB Flash, 512 MB DRAM, dual Gigabit Ethernet ports, two HWIC slots, and one Enhanced High-Speed WAN Interface Card slot.
With the Security license, the Cisco 1921 supports up to 25 IPsec VPN tunnels, enabling secure site-to-site and remote access connectivity.