• Cisco C1921-4G-V-SEC-K9 ISR 1921 router in black and gray with green accents
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Cisco

Cisco C1921-AX-K9 | 2x GE, 2x EHWIC; USB; 512MB DRAM, 256MB CF; License: AX (IP Base+SEC+AppX); SD-WAN: no; LTE: via EHWIC

C1921-AX-K9

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Description

Compact ISR G2 branch router with two Gigabit Ethernet ports and modular EHWIC expansion for WAN, serial, DSL, and optional 3G/4G. The AX bundle enables advanced security and application experience features for secure, optimized branch connectivity.

Features

- AX bundle enables advanced security and application optimization in one SKU
- Two integrated Gigabit interfaces for flexible LAN/WAN roles
- Modular EHWIC design for WAN diversity (serial, xDSL, T1/E1, 3G/4G)
- Hardware-accelerated IPsec for secure site-to-site and remote access VPNs
- Robust QoS for voice, video, and critical application prioritization
- Dual USB (storage + console) simplifies deployment and recovery
- Energy-efficient, quiet branch-ready platform
- IOS feature depth for consistent branch standardization

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Platform: ISR G2 1921 branch router
- Fixed interfaces: 2x 10/100/1000 RJ-45 autosensing
- Expansion: 2x EHWIC slots for WAN/serial/xDSL/3G-4G modules
- USB: 1x USB 2.0 Type-A (storage), 1x mini-USB console
- Console/aux: 1x RJ-45 console, 1x RJ-45 auxiliary
- Memory: 512MB DRAM
- Flash storage: 256MB CompactFlash
- License bundle: AX (includes IP Base + Security + Application Experience)
- Security (AX/SEC): Zone-Based Firewall, IPsec VPN, SSL VPN, IOS IPS (license-dependent)
- Routing: IPv4/IPv6, static and dynamic routing (protocol availability depends on license)
- QoS: Hierarchical QoS, traffic shaping, policing
- SD-WAN: Not natively supported (traditional IOS feature set)
- Cellular: Optional 3G/4G via EHWIC cellular modules
- Power: Internal AC, 100–240 VAC, 50/60 Hz
- Form factor: Desktop/1RU; rack-mount kit optional
- Operating temperature: 0 to 40 °C typical

FAQs

Q: Does this router support SD-WAN?
A: No. It runs classic IOS feature sets; SD-WAN is not natively supported.

Q: Can I add LTE/4G connectivity?
A: Yes. Use an appropriate EHWIC cellular module and antennas.

Q: What is included in the AX license bundle?
A: AX combines IP Base with Security and Application Experience features (e.g., ZBFW, IPsec, SSL VPN, WAAS Express).

Q: Are the Gigabit ports PoE capable?
A: No. The two GE routed ports do not provide PoE.

Q: Is it rack-mountable?
A: Yes, with an optional rack-mount kit; otherwise it is desktop form factor.

Q: What type of flash storage is used?
A: 256MB CompactFlash for system storage; user USB Type-A is also available.

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