Cisco C2821-4SHDSL/K9 Integrated Services Router 128MB Flash

• Branch office WAN connectivity over copper lines
• Remote site enterprise networking deployments
• Secure VPN connectivity between branch locations
• VoIP telephony integration in distributed offices
• Legacy infrastructure modernization without fiber
• SMB and enterprise branch network consolidation
• Government and public sector remote connectivity
• Banking and retail branch network deployments
• Industrial and field office communication systems
• Cost-sensitive enterprise WAN rollout projects 

• 4-pair SHDSL WAN for stable broadband links
• Cisco ISR 2800 enterprise branch architecture
• 512MB DRAM for efficient multi-service handling
• 128MB Flash supports IOS feature scalability
• Integrated VPN for secure branch connectivity
• Advanced QoS for optimized traffic prioritization
• Modular HWIC slots for future network expansion
• Voice-ready platform supports VoIP deployments
• Secure routing for enterprise WAN environments
• Reliable copper-based connectivity for remote sites

• Brand: Cisco
• Product Series: Cisco 2800 Series Integrated Services Router
• Model: C2821-4SHDSL/K9
• Product Type: Enterprise Branch Router
• Router Class: Integrated Services Router (ISR)
• Form Factor: Rack-Mountable Chassis
• WAN Interface Type: 4-Pair G.SHDSL
• WAN Technology: Symmetric Digital Subscriber Line (SHDSL)
• Copper WAN Support: Yes
• Fiber WAN Support: Not Required
• LAN Interfaces: Integrated Fast Ethernet Ports
• Flash Memory: 128MB
• DRAM Memory: 512MB
• Operating System: Cisco IOS
• Routing Capabilities: Advanced IP Routing
• IPv4 Support: Yes
• IPv6 Support: Limited (IOS Version Dependent)
• VPN Support: IPsec VPN
• Security Features: Firewall, ACL, VPN Encryption
• Encryption Standard: IPsec Security Architecture
• QoS Support: Yes (Advanced Traffic Prioritization)
• Voice Support: VoIP Ready
• Modular Slots: HWIC / AIM / Network Modules
• Expansion Capability: High (Modular Design)
• WAN Connectivity: Branch Office Connectivity

WHY CHOOSE THIS PRODUCT?

• Enables broadband WAN over copper where fiber is unavailable
• Combines routing, VPN, QoS, and voice in one platform
• Reduces branch networking infrastructure costs significantly
• Supports secure encrypted enterprise WAN connectivity
• Modular design allows future upgrades and expansion
• Proven Cisco ISR reliability for long-term deployments
• Ideal for distributed enterprise and remote office networks
• Optimized for stable, low-maintenance branch operations