{"id":90528,"date":"2026-09-08T19:07:06","date_gmt":"2026-09-08T19:07:06","guid":{"rendered":"https:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/"},"modified":"2026-09-08T19:07:06","modified_gmt":"2026-09-08T19:07:06","slug":"refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo","status":"publish","type":"product","link":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/","title":{"rendered":"Refurbished C881-V-K9 Cisco 881 FE WAN 4FXS 2BRI 1FXO"},"content":{"rendered":"<p>Refurbished C881-V-K9 Technical Specification<\/p>\n<p>Cisco 881 FE WAN 4FXS 2BRI 1FXO<\/p>\n<p>General<\/p>\n<p>Device Type Router \u2013 4-port switch (integrated)<\/p>\n<p>Enclosure Type Desktop<\/p>\n<p>Connectivity Technology Wired<\/p>\n<p>Data Link Protocol Ethernet, Fast Ethernet<\/p>\n<p>Capacity IPSec VPN tunnels: 20<\/p>\n<p>Network \/ Transport Protocol L2TP, IPSec<\/p>\n<p>Routing Protocol OSPF, RIP-1, RIP-2, BGP, EIGRP, HSRP, VRRP, NHRP, GRE<\/p>\n<p>Remote Management Protocol Telnet, SNMP 3, HTTP, HTTPS, SSH<\/p>\n<p>Encryption Algorithm LEAP, DES, Triple DES, PEAP, TKIP, PKI, 128-bit AES, 192-bit AES, 256-bit AES<\/p>\n<p>Authentication Method RADIUS, TACACS+<\/p>\n<p>Features NAT support, VLAN support, auto-uplink (auto MDI\/MDI-X), IGMP snooping, Stateful Packet Inspection (SPI), DiffServ support, MAC address filtering, Intrusion Prevention System (IPS), Class-Based Weighted Fair Queuing (CBWFQ), Weighted Fair Queuing (WFQ), Spanning Tree Protocol (STP) support, Access Control List (ACL) support, Quality of Service (QoS), DHCP server, DNS proxy, Bidirectional Forwarding Detection (BFD), Virtual Routing and Forwarding (VRF)<\/p>\n<p>Compliant Standards IEEE 802.1D, IEEE 802.1Q, CISPR 24, EN 61000-3-2, EN55022, ICES-003, EN 61000-3-3, EN55024, CISPR 22, EN50082-1, EN55022 Class B, ICES-003 Class B, EN 61000-6-1, AS\/NZ 3548 Class B, EN 60555-2, FCC CFR47 Part 15, FCC CFR47 Part 15 B, VCCI V-3, EN 300 386<\/p>\n<p>RAM 256 MB (installed) \/ 768 MB (max) \u2013 DDR2 SDRAM \u2013 SO-DIMM 200-pin<\/p>\n<p>Flash Memory 128 MB (installed) \/ 128 MB (max)<\/p>\n<p>Status Indicators Port status, power<\/p>\n<p>Expansion \/ Connectivity<\/p>\n<p>Interfaces LAN: 4 x 10Base-T\/100Base-TX \u2013 RJ-45 \u00a6 Management: 1 x console \u2013 RJ-45 \u00a6 WAN: 1 x 10Base-T\/100Base-TX \u2013 RJ-45 \u00a6 USB: 1 x 4 pin USB Type A \u00a6 Phone line: 4 x FXS \u00a6 Phone line: 1 x FXO \u00a6 2 x BRI<\/p>\n<p>Expansion Slots 1 (total) \/ 1 (free) x SO-DIMM 200-pin<\/p>\n<p>Power<\/p>\n<p>Power Device External power adapter \u2013 60 Watt<\/p>\n<p>Voltage Required AC 120\/230 V (50\/60 Hz)<\/p>\n<p>Software \/ System Requirements<\/p>\n<p>OS Provided Cisco IOS Advanced IP services<\/p>\n<p>Software Included Cisco Configuration Professional Express<\/p>\n<p>Related Items<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Refurbished C881-V-K9 Overview<\/p>\n<p>Cisco 881V \u2013 router \u2013 desktop<\/p>\n<p>Device Type<\/p>\n<p>Router \u2013 4-port switch (integrated)<\/p>\n<p>Enclosure Type<\/p>\n<p>Desktop<\/p>\n<p>WAN Ports Qty<\/p>\n<p>1<\/p>\n","protected":false},"featured_media":90529,"comment_status":"closed","ping_status":"open","template":"","meta":{"_acf_changed":false},"product_brand":[255],"product_cat":[691,347,626],"product_tag":[1029],"class_list":["post-90528","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-4-ports-router","first","instock","shipping-taxable","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 C881-V-K9 Cisco 881 FE WAN 4FXS 2BRI 1FXO - 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-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Refurbished C881-V-K9 Cisco 881 FE WAN 4FXS 2BRI 1FXO - Geek Tech Sol\" \/>\n<meta property=\"og:description\" content=\"Refurbished C881-V-K9 Overview Cisco 881V \u2013 router \u2013 desktop Device Type Router \u2013 4-port switch (integrated) Enclosure Type Desktop WAN Ports Qty 1\" \/>\n<meta property=\"og:url\" content=\"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/\" \/>\n<meta property=\"og:site_name\" content=\"Geek Tech Sol\" \/>\n<meta property=\"og:image\" content=\"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Refurbished_Cisco-C881-V-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\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\\\/\",\"url\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\\\/\",\"name\":\"Refurbished C881-V-K9 Cisco 881 FE WAN 4FXS 2BRI 1FXO - Geek Tech Sol\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/geektechsol.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\\\/#primaryimage\"},\"image\":{\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Refurbished_Cisco-C881-V-K9.jpg\",\"datePublished\":\"2026-09-08T19:07:06+00:00\",\"breadcrumb\":{\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\\\/#primaryimage\",\"url\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Refurbished_Cisco-C881-V-K9.jpg\",\"contentUrl\":\"http:\\\/\\\/geektechsol.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Refurbished_Cisco-C881-V-K9.jpg\",\"width\":800,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\\\/\\\/geektechsol.com\\\/index.php\\\/product\\\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\\\/#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 C881-V-K9 Cisco 881 FE WAN 4FXS 2BRI 1FXO\"}]},{\"@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 C881-V-K9 Cisco 881 FE WAN 4FXS 2BRI 1FXO - 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-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/","og_locale":"en_US","og_type":"article","og_title":"Refurbished C881-V-K9 Cisco 881 FE WAN 4FXS 2BRI 1FXO - Geek Tech Sol","og_description":"Refurbished C881-V-K9 Overview Cisco 881V \u2013 router \u2013 desktop Device Type Router \u2013 4-port switch (integrated) Enclosure Type Desktop WAN Ports Qty 1","og_url":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/","og_site_name":"Geek Tech Sol","og_image":[{"width":800,"height":800,"url":"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Refurbished_Cisco-C881-V-K9.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/","url":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/","name":"Refurbished C881-V-K9 Cisco 881 FE WAN 4FXS 2BRI 1FXO - Geek Tech Sol","isPartOf":{"@id":"https:\/\/geektechsol.com\/#website"},"primaryImageOfPage":{"@id":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/#primaryimage"},"image":{"@id":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/#primaryimage"},"thumbnailUrl":"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Refurbished_Cisco-C881-V-K9.jpg","datePublished":"2026-09-08T19:07:06+00:00","breadcrumb":{"@id":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["http:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/#primaryimage","url":"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Refurbished_Cisco-C881-V-K9.jpg","contentUrl":"http:\/\/geektechsol.com\/wp-content\/uploads\/2026\/09\/Refurbished_Cisco-C881-V-K9.jpg","width":800,"height":800},{"@type":"BreadcrumbList","@id":"http:\/\/geektechsol.com\/index.php\/product\/refurbished-c881-v-k9-cisco-881-fe-wan-4fxs-2bri-1fxo\/#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 C881-V-K9 Cisco 881 FE WAN 4FXS 2BRI 1FXO"}]},{"@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"}]}},"_links":{"self":[{"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/product\/90528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/comments?post=90528"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/media\/90529"}],"wp:attachment":[{"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/media?parent=90528"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=90528"},{"taxonomy":"product_cat","embeddable":true,"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=90528"},{"taxonomy":"product_tag","embeddable":true,"href":"http:\/\/geektechsol.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=90528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}