{"product_id":"cisco-25gbase-bx40u-i-sfp28-transceiver","title":"Cisco 25GBASE-BX40U-I SFP28 Transceiver Module","description":"\u003cdiv class=\"product-content\"\u003e\n\u003csection class=\"product-intro\"\u003e\u003ch1\u003eCisco 25GBASE-BX40U-I SFP28 Transceiver Module\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eCisco 25GBASE-BX40U-I\u003c\/strong\u003e is a high-performance \u003cstrong\u003eSFP28 transceiver module\u003c\/strong\u003e engineered for enterprise and carrier-grade 25-Gigabit networking. This \u003cstrong\u003ebidirectional single-fiber optic module\u003c\/strong\u003e enables cost-effective long-distance connectivity over 40 km links using single-mode fiber, making it ideal for data center uplinks, campus interconnects, and industrial network deployments. With an extended industrial temperature range of -40°C to 85°C, this transceiver operates reliably in harsh environments where standard optics fail. Built for Cisco switches and routers, the 25GBASE-BX40U-I delivers the performance and durability mission-critical infrastructure demands.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"key-features\"\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e25-Gigabit bidirectional transmission over single-mode fiber\u003c\/li\u003e\n\u003cli\u003e40 km reach for extended long-distance connectivity\u003c\/li\u003e\n\u003cli\u003eIndustrial temperature range: -40°C to 85°C for harsh environment deployment\u003c\/li\u003e\n\u003cli\u003eSFP28 form factor compatible with Cisco switching and routing platforms\u003c\/li\u003e\n\u003cli\u003eSingle-fiber architecture reduces cabling complexity and costs\u003c\/li\u003e\n\u003cli\u003eHot-pluggable design for seamless module replacement\u003c\/li\u003e\n\u003cli\u003eLow power consumption optimized for data center efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"technical-specs\"\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"8\"\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eCisco Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eSFP-25G-BX40U-I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eSFP28 Transceiver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Rate\u003c\/td\u003e\n\u003ctd\u003e25 Gigabit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Mode\u003c\/td\u003e\n\u003ctd\u003eBidirectional Single-Fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Type\u003c\/td\u003e\n\u003ctd\u003eSingle-Mode Fiber (SMF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Distance\u003c\/td\u003e\n\u003ctd\u003e40 km\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eSFP28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eLC Connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"faq\"\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eWhat is a 25GBASE-BX40U-I SFP28 transceiver used for?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e25GBASE-BX40U-I SFP28 transceiver\u003c\/strong\u003e is used for high-speed 25-Gigabit networking applications including data center uplinks, campus fiber interconnects, and long-distance single-fiber deployments. Its 40 km reach makes it suitable for metropolitan area networks and industrial environments requiring extended connectivity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eHow does bidirectional single-fiber transmission work?\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003eSFP28 module\u003c\/strong\u003e uses wavelength division multiplexing (WDM) to transmit and receive data simultaneously over a single strand of single-mode fiber. This reduces infrastructure costs by eliminating the need for dual-fiber cabling while maintaining full-duplex 25G performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eCan the Cisco 25GBASE-BX40U-I operate in extreme temperatures?\u003c\/h3\u003e\n\u003cp\u003eYes, the industrial temperature range of -40°C to 85°C enables deployment in harsh environments including outdoor installations, manufacturing facilities, and remote locations where standard optics cannot reliably function.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eWhat Cisco devices support the 25GBASE-BX40U-I transceiver?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSFP-25G-BX40U-I\u003c\/strong\u003e is compatible with Cisco Nexus switches, Catalyst platforms, and ASR routers equipped with SFP28 ports. Verify your specific device's optics compatibility matrix before deployment.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"CISCO SYSTEMS","offers":[{"title":"Default Title","offer_id":41742394163275,"sku":"SFP-25G-BX40U-I","price":7593.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1824\/0789\/files\/Cisco-25GBASE-BX40U-I-SFP28-Transceiver-Module.jpg?v=1787319111","url":"https:\/\/www.tecisoft.com\/products\/cisco-25gbase-bx40u-i-sfp28-transceiver","provider":"TeciSoft","version":"1.0","type":"link"}