© 2026. Powered by C2 Computer. All Rights Reserved.
(NEW) Cisco 1900 Series Integrated Services Routers - C1921-3G-U-K9
Couldn't load pickup availability

Overview
The CISCO1921-3G-U-K9 is part of Cisco’s 1900 Series Integrated Services Routers (ISR), tailored for small to medium-sized enterprises that require reliable connectivity and high security. This model is designed for 3G mobile broadband connectivity using a universal carrier and comes equipped with robust routing capabilities and integrated security features, making it ideal for remote or branch offices that need secure and efficient communication.
Specs
- Model: CISCO1921-3G-U-K9
- Product Family: Cisco 1900 Series Integrated Services Router (ISR)
Network and Connectivity:
-
WAN Ports:
- 2 integrated 10/100/1000 Gigabit Ethernet ports
-
Expansion Slots:
- 2 Enhanced High-Speed WAN Interface Card (EHWIC) slots
- 2 onboard digital signal processor (DSP) slots for voice services
- 1 internal services module (ISM) slot
-
3G Connectivity:
- Built-in 3G Universal support for mobile broadband connections with multiple carrier support
Integrated Services:
-
Embedded Encryption:
- Hardware-based encryption
- Support for both voice and data services
Memory and Storage:
- DRAM: 512 MB (expandable up to 2 GB)
- Flash Memory: 256 MB (expandable up to 4 GB)
Security Features:
-
Security Bundle:
- Cisco IOS Security with firewall, IPS, VPN, and content filtering
- Unlimited IPsec VPN tunnels
- SSL VPN, GET VPN, and FlexVPN support
- Cisco IOS Zone-Based Firewall for granular control over traffic
-
Encryption:
- Hardware-accelerated encryption for IPsec VPN
- Advanced encryption support: AES, 3DES
Voice Features:
-
Voice Services:
- Cisco Unified Communications Manager Express (CUCM) support
- Integrated voice gateway services
- Cisco Unified Border Element (CUBE) support
- TDM gateway and SRST (Survivable Remote Site Telephony)
Performance:
- Routing Performance: Up to 15 Mbps with services enabled
- VPN Throughput: Hardware-assisted VPN encryption for high-performance secure connections
- Routing Protocols: OSPF, EIGRP, BGP, RIP, IPv6, MPLS
- QoS: Advanced Quality of Service (QoS) features for prioritizing voice and data traffic
Management and Monitoring:
- Management: CLI, Cisco Configuration Professional (CCP), SNMP, NETCONF
- Monitoring: Embedded monitoring with Cisco IOS IP Service Level Agreements (IP SLAs)
Power:
- Power Supply: Internal AC power supply
- Power Consumption: Approximately 60W typical
The Custom Tab allows you to display personalized content on your product page with full flexibility.
You can easily manage what appears inside this tab by choosing one of the following options:
- Manual Input: Enter content directly in the theme settings.
- Metafield Source: Connect the tab to a metafield to display dynamic, product-specific information.
- Page Content: Pull existing content from a Shopify page to reuse or centralize updates.
This feature is ideal for showing size guides, care instructions, brand stories, shipping details, or any custom information you want your customers to see — all without touching any code.