{"id":86141,"date":"2026-09-08T16:59:59","date_gmt":"2026-09-08T16:59:59","guid":{"rendered":"https:\/\/geektechsol.com\/index.php\/product\/refurbished-isr4451-x-k9-cisco-4451-x-router-4-ports\/"},"modified":"2026-09-08T16:59:59","modified_gmt":"2026-09-08T16:59:59","slug":"refurbished-isr4451-x-k9-cisco-4451-x-router-4-ports","status":"publish","type":"product","link":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-isr4451-x-k9-cisco-4451-x-router-4-ports\/","title":{"rendered":"Refurbished ISR4451-X\/K9 Cisco 4451-X Router \u2013 4 Ports"},"content":{"rendered":"<p>Refurbished ISR4451-X\/K9 Technical Specifications<\/p>\n<p>Cisco 4451-X Router \u2013 4 Ports \u2013 Management Port \u2013 PoE Ports \u2013 10 Slots \u2013 Gigabit Ethernet<\/p>\n<p>General Information:<\/p>\n<p>Manufacturer Cisco Systems, Inc<\/p>\n<p>Manufacturer Part Number: ISR4451-X\/K9<\/p>\n<p>Brand Name: Cisco<\/p>\n<p>Product Line Cisco ASR<\/p>\n<p>Model: ISR4451<\/p>\n<p>Ethernet Technology: Gigabit Ethernet<\/p>\n<p>Product Name: 4451-X Router<\/p>\n<p>Product Type: Router<\/p>\n<p>Interfaces\/Ports<\/p>\n<p>Total Number of Ports: 4<\/p>\n<p>USB: Yes<\/p>\n<p>Powerline: No<\/p>\n<p>Management Port: Yes<\/p>\n<p>Token Ring Port: No<\/p>\n<p>Serial V.35 Interface: No<\/p>\n<p>Number of Network (RJ-45) Ports: 4<\/p>\n<p>I\/O Expansions:<\/p>\n<p>Number of Total Expansion Slots 10<\/p>\n<p>Expansion Slot Type-<\/p>\n<p>Network Interface Module (NIM)<\/p>\n<p>SFP<\/p>\n<p>PVDM<\/p>\n<p>Network &#038; Communication:<\/p>\n<p>Network Technology 10\/100\/1000Base-T<\/p>\n<p>Ethernet Technology Gigabit Ethernet<\/p>\n<p>Management &#038; Protocols:<\/p>\n<p>Security Features-<\/p>\n<p>IPsec<\/p>\n<p>VPN<\/p>\n<p>Secure Socket Layer (SSL)<\/p>\n<p>Advanced Application Inspection<\/p>\n<p>Application Control<\/p>\n<p>Secure Shell (SSH)<\/p>\n<p>Network Admissions control (NAC)<\/p>\n<p>Voice and Video Enabled VPN<\/p>\n<p>Dynamic Multipoint VPN (DMVPN)<\/p>\n<p>Group Encrypted Transport (GET)<\/p>\n<p>Flex VPN<\/p>\n<p>Cisco IOS XE Software-based Traffic Control<\/p>\n<p>NBAR<\/p>\n<p>AAA<\/p>\n<p>PKI<\/p>\n<p>ACL<\/p>\n<p>Memory:<\/p>\n<p>Standard Memory 4 GB<\/p>\n<p>Maximum Memory 16 GB<\/p>\n<p>Memory Technology DRAM<\/p>\n<p>Flash Memory 8 GB<\/p>\n<p>Power Description:<\/p>\n<p>PoE (RJ-45) Port Yes<\/p>\n<p>Input Voltage 110 V AC<\/p>\n<p>220 V AC<\/p>\n<p>Power Source Power Supply<\/p>\n<p>Redundant Power Supply Yes<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Refurbished ISR4451-X-K9 Overview<\/p>\n<p>Cisco 4451 Integrated Services Router, named as ISR4451-X, which supports 2 Enhanced service-module (SM-X) slots, delivers 1 Gbps to 2Gbps aggregate throughput. This router also supports two kinds of DDRM, data plane and control\/services plane, which make administrator easy to manage the router.<\/p>\n","protected":false},"featured_media":86142,"comment_status":"closed","ping_status":"open","template":"","meta":{"_acf_changed":false},"product_brand":[255],"product_cat":[691,347,626],"product_tag":[908,1037,677,339,628,1034],"class_list":["post-86141","product","type-product","status-publish","has-post-thumbnail","product_brand-cisco","product_cat-cisco-refurbished-routers","product_cat-refurbished","product_cat-refurbished-routers","product_tag-cisco-asr","product_tag-cisco-isr-4000-series","product_tag-gigabit-ethernet-servers","product_tag-poe-switch","product_tag-router","product_tag-vpn-router","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Refurbished ISR4451-X\/K9 Cisco 4451-X Router \u2013 4 Ports - Geek Tech Sol<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/geektechsol.com\/index.php\/product\/refurbished-isr4451-x-k9-cisco-4451-x-router-4-ports\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Refurbished ISR4451-X\/K9 Cisco 4451-X Router \u2013 4 Ports - Geek Tech Sol\" \/>\n<meta property=\"og:description\" content=\"Refurbished ISR4451-X-K9 Overview Cisco 4451 Integrated Services Router, named as ISR4451-X, which supports 2 Enhanced service-module (SM-X) slots, delivers 1 Gbps to 2Gbps aggregate throughput. 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