{"product_id":"cisco-isr-4221-router","title":"Cisco ISR 4221 Integrated Services Router - 3-Port Gigabit, Security Bundle (Refurbished)","description":"\u003cdiv class=\"serverdukan-product-description\"\u003e\n  \u003cp\u003e\n    The \u003cstrong\u003eCisco ISR 4221 Integrated Services Router\u003c\/strong\u003e is a high-performance enterprise router designed for branch offices, small to medium businesses, and distributed enterprise networks requiring advanced routing, security, and WAN connectivity. Featuring 3 onboard Gigabit Ethernet ports, modular network interface slots, integrated security features, and support for unified communications, this router delivers comprehensive networking capabilities in a compact 1U form factor. Each unit is \u003cstrong\u003eCertified Refurbished\u003c\/strong\u003e, thoroughly tested, and backed by a \u003cstrong\u003e1-Month Warranty\u003c\/strong\u003e. Ideal for organizations requiring reliable WAN aggregation, VPN connectivity, and application-aware routing.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eKey Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3 Onboard Gigabit Ethernet Ports:\u003c\/strong\u003e Built-in GE interfaces for WAN, LAN, and DMZ connectivity with full wire-speed performance\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eModular Network Interface Cards:\u003c\/strong\u003e Two NIM slots supporting additional interfaces including T1\/E1, Serial, DSL, LTE, and Ethernet modules\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIntegrated Security:\u003c\/strong\u003e Built-in firewall, VPN, intrusion prevention, and advanced threat protection capabilities\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHigh-Performance Processing:\u003c\/strong\u003e Dual-core CPU with hardware acceleration for encryption, routing, and application recognition\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUnified Communications Ready:\u003c\/strong\u003e Support for voice, video, and collaboration applications with QoS and SIP trunk capabilities\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSD-WAN Capable:\u003c\/strong\u003e Software-defined WAN support for intelligent path selection and cloud application optimization\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable border=\"1\" cellpadding=\"10\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%; background-color: #f9f9f9;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"background-color: #e8f4f8;\"\u003e\n        \u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eISR4221\/K9\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eForm Factor\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e1U Rack-Mountable Router\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #e8f4f8;\"\u003e\n        \u003ctd\u003e\u003cstrong\u003eOnboard Interfaces\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e3x Gigabit Ethernet (10\/100\/1000) RJ-45 Ports\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eNIM Slots\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e2x Network Interface Module Slots\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #e8f4f8;\"\u003e\n        \u003ctd\u003e\u003cstrong\u003eSM Slot\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e1x Service Module Slot (SM-X)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eProcessor\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eDual-core x86 CPU\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #e8f4f8;\"\u003e\n        \u003ctd\u003e\u003cstrong\u003eSystem Memory\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e4 GB DRAM (default), upgradable to 16 GB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eFlash Storage\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e8 GB eUSB (embedded USB)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #e8f4f8;\"\u003e\n        \u003ctd\u003e\u003cstrong\u003eThroughput\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eUp to 300 Mbps with security features enabled\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eVPN Throughput\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eUp to 100 Mbps (IPsec)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #e8f4f8;\"\u003e\n        \u003ctd\u003e\u003cstrong\u003eConcurrent Sessions\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e64,000 sessions\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eManagement Ports\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eConsole (RJ-45), USB Console, Auxiliary\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #e8f4f8;\"\u003e\n        \u003ctd\u003e\u003cstrong\u003eUSB Ports\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e2x USB 3.0, 1x USB 2.0 Console\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eAC Power Supply (100-240V)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #e8f4f8;\"\u003e\n        \u003ctd\u003e\u003cstrong\u003eIOS Version\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eCisco IOS XE Software\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eSecurity \u0026amp; VPN Capabilities\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eZone-Based Firewall:\u003c\/strong\u003e Stateful packet inspection with application-layer filtering\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIPsec VPN:\u003c\/strong\u003e Site-to-site and remote access VPN with AES 128\/256 encryption\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSSL VPN:\u003c\/strong\u003e Clientless and client-based secure remote access\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIntrusion Prevention:\u003c\/strong\u003e Cisco IOS IPS for threat detection and prevention\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eURL Filtering:\u003c\/strong\u003e Web security and content filtering capabilities\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAdvanced Malware Protection:\u003c\/strong\u003e Integration with Cisco AMP for endpoint protection\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRouting \u0026amp; WAN Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDynamic Routing Protocols:\u003c\/strong\u003e OSPF, EIGRP, BGP, RIP, IS-IS support\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePolicy-Based Routing:\u003c\/strong\u003e Intelligent traffic steering based on application type\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMPLS Support:\u003c\/strong\u003e Label switching for service provider connectivity\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWAN Optimization:\u003c\/strong\u003e Built-in compression and TCP optimization\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMulti-WAN Support:\u003c\/strong\u003e Load balancing and failover across multiple connections\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication Visibility:\u003c\/strong\u003e NBAR2 for deep packet inspection and application recognition\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eIdeal Use Cases\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBranch Office WAN Router:\u003c\/strong\u003e Primary router for remote offices requiring secure connectivity to headquarters\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSmall Business Gateway:\u003c\/strong\u003e All-in-one routing, firewall, and VPN solution for SMBs\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSD-WAN Edge Device:\u003c\/strong\u003e Software-defined WAN deployment for cloud application optimization\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBackup\/Failover Router:\u003c\/strong\u003e Redundant WAN connectivity with automatic failover capabilities\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVPN Concentrator:\u003c\/strong\u003e Centralized VPN termination for remote workers and branch offices\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMulti-Site Connectivity:\u003c\/strong\u003e MPLS, Internet, and 4G LTE aggregation for resilient WAN\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSupported Network Modules (NIMs)\u003c\/h3\u003e\n  \u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eEthernet NIMs\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eAdditional Gigabit Ethernet ports, 10G fiber interfaces\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eSerial NIMs\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eT1\/E1, T3\/E3 for legacy WAN connections\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eWireless NIMs\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e4G LTE, 3G cellular for backup or primary WAN\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eDSL NIMs\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eADSL2+, VDSL2 for broadband connectivity\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eVoice NIMs\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eFXS, FXO, BRI for voice gateway integration\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eWhat's Included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e1x Cisco ISR 4221 Router (Certified Refurbished)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003ePerformance Specifications\u003c\/h3\u003e\n  \u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eMaximum Bandwidth\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e300 Mbps aggregate throughput\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003ePackets Per Second\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e100,000+ PPS\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eRouting Table Size\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e256,000+ IPv4 routes\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eVPN Tunnels\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eUp to 250 IPsec tunnels\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eMaximum 65W\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e0°C to 40°C (32°F to 104°F)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eMTBF\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e300,000+ hours\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003cdiv class=\"warranty-badge\" style=\"background-color: #fff3cd; padding: 15px; margin-top: 20px; border-left: 4px solid #ffc107;\"\u003e\n    \u003cstrong\u003e🛡️ Quality Assurance:\u003c\/strong\u003e All refurbished routers undergo comprehensive testing including interface verification, IOS upgrade, and performance validation. 1-Month Warranty covers all hardware defects.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"shipping-info\" style=\"background-color: #e3f2fd; padding: 15px; margin-top: 15px; border-left: 4px solid #2196f3;\"\u003e\n    \u003cstrong\u003e🚚 Fast Delivery:\u003c\/strong\u003e Quick dispatch across India including Delhi NCR, Mumbai, Bangalore, Pune, Hyderabad, and Chennai.\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"ServerDukan","offers":[{"title":"Default Title","offer_id":48554380165344,"sku":null,"price":15000.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/4120\/0352\/files\/cisco-4221-isr-router-isr4221-k9-refurbished-882658710537-3527415169094.webp?v=1768635188","url":"https:\/\/serverdukan.com\/products\/cisco-isr-4221-router","provider":"ServerDukan","version":"1.0","type":"link"}