{"id":86135,"date":"2026-09-08T16:59:29","date_gmt":"2026-09-08T16:59:29","guid":{"rendered":"https:\/\/geektechsol.com\/index.php\/product\/refurbished-isr4331-k9-cisco-isr-4331-router-3-ports\/"},"modified":"2026-09-08T16:59:54","modified_gmt":"2026-09-08T16:59:54","slug":"refurbished-isr4331-k9-cisco-isr-4331-router-3-ports","status":"publish","type":"product","link":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-isr4331-k9-cisco-isr-4331-router-3-ports\/","title":{"rendered":"Refurbished ISR4331\/K9 Cisco ISR 4331 Router \u2013 3 Ports"},"content":{"rendered":"<p>Refurbished ISR4331\/K9 Technical Specifications<\/p>\n<p>Cisco 4331 Router \u2013 3 Ports 6 Slots Network Router<\/p>\n<p>General Information<\/p>\n<p>Manufacturer Cisco Systems, Inc<\/p>\n<p>Manufacturer Part Number ISR4331\/K9<\/p>\n<p>Brand Name Cisco<\/p>\n<p>Product Line Cisco ISR<\/p>\n<p>Product Series Cisco ISR 4000<\/p>\n<p>Product Model ISR4331<\/p>\n<p>Ethernet Technology: Gigabit Ethernet<\/p>\n<p>Product Name 4331 Router<\/p>\n<p>Product Type Router<\/p>\n<p>Interfaces\/Ports<\/p>\n<p>Total Number of Ports 3<\/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 2<\/p>\n<p>I\/O Expansions<\/p>\n<p>Number of Total Expansion Slots 6<\/p>\n<p>Expansion Slot Type SFP<\/p>\n<p>Expansion Slot Type Network Interface Module (NIM)<\/p>\n<p>Expansion Slot Type Integrated Services Card (ISC)<\/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 DDR3 SDRAM<\/p>\n<p>Flash Memory 4 GB<\/p>\n<p>Power Description<\/p>\n<p>PoE (RJ-45) Port No<\/p>\n<p>Input Voltage 230 V AC<\/p>\n<p>Input Voltage 120 V AC<\/p>\n<p>Power Source Power Supply<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Refurbished ISR4331\/K9 Overview<\/p>\n<p>Protect your branch site and prepare it for the future with the Cisco 4000 Series ISR digital-ready platform. Simplify day-to-day IT management. Provide a scalable, flexible foundation so you can quickly integrate leading IT initiatives like SD-WAN and edge compute.<\/p>\n","protected":false},"featured_media":86136,"comment_status":"closed","ping_status":"open","template":"","meta":{"_acf_changed":false},"product_brand":[255],"product_cat":[691,347,626],"product_tag":[1036,1037,677,628,1052,1034],"class_list":["post-86135","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-isr","product_tag-cisco-isr-4000-series","product_tag-gigabit-ethernet-servers","product_tag-router","product_tag-sfp-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 ISR4331\/K9 Cisco ISR 4331 Router \u2013 3 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=\"https:\/\/geektechsol.com\/index.php\/product\/refurbished-isr4331-k9-cisco-isr-4331-router-3-ports\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Refurbished ISR4331\/K9 Cisco ISR 4331 Router \u2013 3 Ports - Geek Tech Sol\" \/>\n<meta property=\"og:description\" content=\"Refurbished ISR4331\/K9 Overview Protect your branch site and prepare it for the future with the Cisco 4000 Series ISR digital-ready platform. Simplify day-to-day IT management. 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