{"id":86321,"date":"2026-09-08T17:02:14","date_gmt":"2026-09-08T17:02:14","guid":{"rendered":"https:\/\/geektechsol.com\/index.php\/product\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\/"},"modified":"2026-09-08T17:02:30","modified_gmt":"2026-09-08T17:02:30","slug":"refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router","status":"publish","type":"product","link":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\/","title":{"rendered":"Refurbished C1921-3G-S-SEC\/K9 Cisco ISR G2 1921 Router"},"content":{"rendered":"<p>Refurbished C1921-3G-S-SEC\/K9 Technical Specifications<\/p>\n<p>Cisco ISR G2 1921 Router \u2013 Modular \u2013 3G\/4G Modem<\/p>\n<p>General Information<\/p>\n<p>Manufacturer Cisco Systems, Inc<\/p>\n<p>Manufacturer Part Number C1921-3G-S-SEC\/K9<\/p>\n<p>Brand Name Cisco<\/p>\n<p>Product Line Cisco ISR<\/p>\n<p>Product Model C1921<\/p>\n<p>Product Series Cisco 1900<\/p>\n<p>Product Type C1921 3G EHWIC EVDO Bundles with SEC for Sprint Networks<\/p>\n<p>Rack Units 1U<\/p>\n<p>Interfaces 2 integrated 10\/100\/1000 Ethernet ports: GE0\/0&#038;GE0\/1<\/p>\n<p>Expansion Slot(s) 2 enhanced High-Speed WAN Interface Card (EHWIC) slots<\/p>\n<p>RAM 512 MB\/512 MB<\/p>\n<p>Flash Memory 256 MB\/256 MB<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Refurbished C1921-3G-S-SEC\/K9 Overview<\/p>\n<p>The Cisco 1921 builds on the best-in-class. All Cisco 1900 Series Integrated Services Routers offer embedded hardware encryption acceleration, and advanced security services. In addition, the platforms support the industry\u2019s widest range of wired and wireless connectivity options such as Serial, T1\/E1, xDSL, Gigabit Ethernet, and third-generation (3G) wireless.<\/p>\n","protected":false},"featured_media":86322,"comment_status":"closed","ping_status":"open","template":"","meta":{"_acf_changed":false},"product_brand":[255],"product_cat":[691,347,626],"product_tag":[721,1042,9543,1036,628],"class_list":["post-86321","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-1000-series-router","product_tag-cisco-1900-series-router","product_tag-cisco-c1921-series-router","product_tag-cisco-isr","product_tag-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 C1921-3G-S-SEC\/K9 Cisco ISR G2 1921 Router - 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-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Refurbished C1921-3G-S-SEC\/K9 Cisco ISR G2 1921 Router - Geek Tech Sol\" \/>\n<meta property=\"og:description\" content=\"Refurbished C1921-3G-S-SEC\/K9 Overview The Cisco 1921 builds on the best-in-class. All Cisco 1900 Series Integrated Services Routers offer embedded hardware encryption acceleration, and advanced security services. In addition, the platforms support the industry\u2019s widest range of wired and wireless connectivity options such as Serial, T1\/E1, xDSL, Gigabit Ethernet, and third-generation (3G) wireless.\" \/>\n<meta property=\"og:url\" content=\"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\/\" \/>\n<meta property=\"og:site_name\" content=\"Geek Tech Sol\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-08T17:02:30+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Refurbished-Cisco-C1921-3G-S-SEC-K9.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\\\/\",\"url\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\\\/\",\"name\":\"Refurbished C1921-3G-S-SEC\\\/K9 Cisco ISR G2 1921 Router - Geek Tech Sol\",\"isPartOf\":{\"@id\":\"http:\\\/\\\/geektechsol.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\\\/#primaryimage\"},\"image\":{\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Refurbished-Cisco-C1921-3G-S-SEC-K9.jpg\",\"datePublished\":\"2026-09-08T17:02:14+00:00\",\"dateModified\":\"2026-09-08T17:02:30+00:00\",\"breadcrumb\":{\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\\\/#primaryimage\",\"url\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Refurbished-Cisco-C1921-3G-S-SEC-K9.jpg\",\"contentUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Refurbished-Cisco-C1921-3G-S-SEC-K9.jpg\",\"width\":800,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"http:\\\/\\\/geektechsol.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Refurbished C1921-3G-S-SEC\\\/K9 Cisco ISR G2 1921 Router\"}]},{\"@type\":\"WebSite\",\"@id\":\"http:\\\/\\\/geektechsol.com\\\/#website\",\"url\":\"http:\\\/\\\/geektechsol.com\\\/\",\"name\":\"Geek Tech Sol\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"http:\\\/\\\/geektechsol.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Refurbished C1921-3G-S-SEC\/K9 Cisco ISR G2 1921 Router - Geek Tech Sol","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c1921-3g-s-sec-k9-cisco-isr-g2-1921-router\/","og_locale":"en_US","og_type":"article","og_title":"Refurbished C1921-3G-S-SEC\/K9 Cisco ISR G2 1921 Router - Geek Tech Sol","og_description":"Refurbished C1921-3G-S-SEC\/K9 Overview The Cisco 1921 builds on the best-in-class. 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