{"id":170875,"date":"2026-09-10T11:27:00","date_gmt":"2026-09-10T11:27:00","guid":{"rendered":"https:\/\/geektechsol.com\/index.php\/product\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\/"},"modified":"2026-09-10T11:27:05","modified_gmt":"2026-09-10T11:27:05","slug":"cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d","status":"publish","type":"product","link":"http:\/\/geektechsol.com\/index.php\/product\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\/","title":{"rendered":"CISCO1921-ADSL2\/K9 Cisco 1921 ADSL2+256F\/512D"},"content":{"rendered":"<p>CISCO1921-ADSL2\/K9 Technical Specifications<\/p>\n<p>Cisco 1921 ADSL2+256F\/512D, IP Base Lic<\/p>\n<p>General Information<\/p>\n<p>Manufacturer Cisco Systems, Inc<\/p>\n<p>Manufacturer Part Number CISCO1921-ADSL2\/K9<\/p>\n<p>Brand Name Cisco<\/p>\n<p>Product Series Cisco 1900<\/p>\n<p>Product Model CISCO1921<\/p>\n<p>Product Type Cisco 1921 router with ADSL2+ Bundle, HWIC-1ADSL, 256F\/512D, and IP Base License<\/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>CISCO1921-ADSL2\/K9 Overview<\/p>\n<p>The Cisco 1921 builds on the best-in-class offering of the Cisco 1841 Integrated Services Routers. All Cisco 1900 Series Integrated Services Routers offer embedded hardware encryption acceleration, optional firewall, intrusion prevention, 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":170876,"comment_status":"closed","ping_status":"open","template":"","meta":{"_acf_changed":false},"product_brand":[255],"product_cat":[720,719],"product_tag":[9623,721,1042,628],"class_list":["post-170875","product","type-product","status-publish","has-post-thumbnail","product_brand-cisco","product_cat-cisco-routers","product_cat-routers","product_tag-adsl2-plus-routers","product_tag-cisco-1000-series-router","product_tag-cisco-1900-series-router","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>CISCO1921-ADSL2\/K9 Cisco 1921 ADSL2+256F\/512D - 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\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CISCO1921-ADSL2\/K9 Cisco 1921 ADSL2+256F\/512D - Geek Tech Sol\" \/>\n<meta property=\"og:description\" content=\"CISCO1921-ADSL2\/K9 Overview The Cisco 1921 builds on the best-in-class offering of the Cisco 1841 Integrated Services Routers. 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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=\"https:\/\/geektechsol.com\/index.php\/product\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\/\" \/>\n<meta property=\"og:site_name\" content=\"Geek Tech Sol\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-10T11:27:05+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Cisco-CISCO1921-ADSL2-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\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\\\/\",\"url\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\\\/\",\"name\":\"CISCO1921-ADSL2\\\/K9 Cisco 1921 ADSL2+256F\\\/512D - Geek Tech Sol\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Cisco-CISCO1921-ADSL2-K9.jpg\",\"datePublished\":\"2026-09-10T11:27:00+00:00\",\"dateModified\":\"2026-09-10T11:27:05+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\\\/#primaryimage\",\"url\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Cisco-CISCO1921-ADSL2-K9.jpg\",\"contentUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Cisco-CISCO1921-ADSL2-K9.jpg\",\"width\":800,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\\\/#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\":\"CISCO1921-ADSL2\\\/K9 Cisco 1921 ADSL2+256F\\\/512D\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/geektechsol.com\\\/#website\",\"url\":\"https:\\\/\\\/geektechsol.com\\\/\",\"name\":\"Geek Tech Sol\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/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":"CISCO1921-ADSL2\/K9 Cisco 1921 ADSL2+256F\/512D - 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":"https:\/\/geektechsol.com\/index.php\/product\/cisco1921-adsl2-k9-cisco-1921-adsl2256f-512d\/","og_locale":"en_US","og_type":"article","og_title":"CISCO1921-ADSL2\/K9 Cisco 1921 ADSL2+256F\/512D - Geek Tech Sol","og_description":"CISCO1921-ADSL2\/K9 Overview The Cisco 1921 builds on the best-in-class offering of the Cisco 1841 Integrated Services Routers. 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