{"id":86503,"date":"2026-09-08T17:07:00","date_gmt":"2026-09-08T17:07:00","guid":{"rendered":"https:\/\/geektechsol.com\/index.php\/product\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\/"},"modified":"2026-09-08T17:07:02","modified_gmt":"2026-09-08T17:07:02","slug":"refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router","status":"publish","type":"product","link":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\/","title":{"rendered":"Refurbished CISCO891-K9 Cisco Router Cisco 891 GigaE Security Router"},"content":{"rendered":"<p>Refurbished CISCO891-K9 Technical Specifications<\/p>\n<p>Cisco Router Cisco 891 GigaE Security Router<\/p>\n<p>Product Line Security Router<\/p>\n<p>Product Series Cisco 890<\/p>\n<p>Product Model CISCO891<\/p>\n<p>Product Description: Cisco 891 Gigabit Ethernet Security Router \u2013 router<\/p>\n<p>Manufacturer: Cisco Systems, Inc<\/p>\n<p>Manufacturer Part Number: CISCO891-K9<\/p>\n<p>Product Type: Router + 8-port switch (integrated)<\/p>\n<p>Form Factor: External<\/p>\n<p>Dimensions (WxDxH): 32.5 cm x 24.9 cm x 4.4 cm<\/p>\n<p>DRAM Memory: 512 MB (installed) \/ 768 MB (max) \u2013 DDR2 SDRAM<\/p>\n<p>Flash Memory: 256 MB (installed) \/ 256 MB (max)<\/p>\n<p>Routing Protocol: OSPF, RIP-1, RIP-2, BGP, EIGRP, HSRP, VRRP, NHRP, GRE<\/p>\n<p>Data Link Protocol: Ethernet, Fast Ethernet<\/p>\n<p>Network \/ Transport Protocol: L2TP, IPSec<\/p>\n<p>Remote Management Protocol: Telnet, SNMP 3, HTTP, HTTPS, SSH<\/p>\n<p>Features<\/p>\n<p>Cisco IOS Advanced IP services , VPN support, VLAN support, auto-uplink (auto MDI\/MDI-X),<\/p>\n<p>Stateful Packet Inspection (SPI), MAC address filtering, Class-Based Weighted Fair Queuing (CBWFQ),<\/p>\n<p>Weighted Fair Queuing (WFQ), Access Control List (ACL) support, Quality of Service (QoS), DHCP server,<\/p>\n<p>DNS proxy<\/p>\n<p>Compliant Standards<\/p>\n<p>IEEE 802.1D, IEEE 802.1Q, IEEE 802.1x<\/p>\n<p>Power<\/p>\n<p>AC 120\/230 V ( 50\/60 Hz )<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Refurbished CISCO891-K9 Overview<\/p>\n<p>Cisco 890 Series Integrated Services Routers are designed to deliver highly secure broadband, Metro Ethernet, wireless LAN connectivity, and business continuity for enterprise small branch offices. The Cisco 891 model includes an integrated V.92 analog modem interface.<\/p>\n","protected":false},"featured_media":86504,"comment_status":"closed","ping_status":"open","template":"","meta":{"_acf_changed":false},"product_brand":[255],"product_cat":[691,347,626],"product_tag":[1027,1032,628,1030,1034],"class_list":["post-86503","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-8-ports-router","product_tag-cisco-800-series-router","product_tag-router","product_tag-security-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 CISCO891-K9 Cisco Router Cisco 891 GigaE Security 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=\"https:\/\/geektechsol.com\/index.php\/product\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Refurbished CISCO891-K9 Cisco Router Cisco 891 GigaE Security Router - Geek Tech Sol\" \/>\n<meta property=\"og:description\" content=\"Refurbished CISCO891-K9 Overview Cisco 890 Series Integrated Services Routers are designed to deliver highly secure broadband, Metro Ethernet, wireless LAN connectivity, and business continuity for enterprise small branch offices. The Cisco 891 model includes an integrated V.92 analog modem interface.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/geektechsol.com\/index.php\/product\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\/\" \/>\n<meta property=\"og:site_name\" content=\"Geek Tech Sol\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-08T17:07:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Refurbished_Cisco-CISCO891-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<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\\\/\",\"url\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\\\/\",\"name\":\"Refurbished CISCO891-K9 Cisco Router Cisco 891 GigaE Security Router - Geek Tech Sol\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Refurbished_Cisco-CISCO891-K9.jpg\",\"datePublished\":\"2026-09-08T17:07:00+00:00\",\"dateModified\":\"2026-09-08T17:07:02+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\\\/#primaryimage\",\"url\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Refurbished_Cisco-CISCO891-K9.jpg\",\"contentUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Refurbished_Cisco-CISCO891-K9.jpg\",\"width\":800,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-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 CISCO891-K9 Cisco Router Cisco 891 GigaE Security Router\"}]},{\"@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":"Refurbished CISCO891-K9 Cisco Router Cisco 891 GigaE Security 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":"https:\/\/geektechsol.com\/index.php\/product\/refurbished-cisco891-k9-cisco-router-cisco-891-gigae-security-router\/","og_locale":"en_US","og_type":"article","og_title":"Refurbished CISCO891-K9 Cisco Router Cisco 891 GigaE Security Router - Geek Tech Sol","og_description":"Refurbished CISCO891-K9 Overview Cisco 890 Series Integrated Services Routers are designed to deliver highly secure broadband, Metro Ethernet, wireless LAN connectivity, and business continuity for enterprise small branch offices. 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