{"product_id":"cisco-glc-sx-mmd","title":"Cisco GLC-SX-MMD 1000BASE-SX SFP Transceiver Module - 550m MMF, 850nm, DOM (Refurbished)","description":"\u003cdiv style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto;\"\u003e\n\n    \u003cdiv style=\"margin-bottom: 30px;\"\u003e\n        \u003ch2 style=\"color: #0056b3; border-bottom: 2px solid #eee; padding-bottom: 10px;\"\u003eProduct Overview\u003c\/h2\u003e\n        \u003cp style=\"font-size: 16px;\"\u003e\n            Upgrade your network infrastructure cost-effectively with the \u003cstrong\u003eCisco GLC-SX-MMD 1000BASE-SX SFP Transceiver Module\u003c\/strong\u003e. This enterprise-grade, \u003cstrong\u003eCertified Refurbished\u003c\/strong\u003e optical transceiver is designed for Gigabit Ethernet connectivity in corporate data centers, campus networks, and wiring closets. Operating at a wavelength of 850nm, it delivers reliable 1 Gbps data transfer speeds over multimode fiber (MMF) cabling.\n        \u003c\/p\u003e\n        \u003cp style=\"font-size: 16px;\"\u003e\n            Unlike the older GLC-SX-MM model, this \"MMD\" version features \u003cstrong\u003eDigital Optical Monitoring (DOM)\u003c\/strong\u003e, allowing network administrators to monitor real-time parameters such as optical output power, optical input power, temperature, and transceiver supply voltage. ideal for connecting Cisco Catalyst switches, routers, and firewalls, this unit has been rigorously tested by our technicians to ensure 100% functionality. Backed by ServerDukan's \u003cstrong\u003e1-Month Warranty\u003c\/strong\u003e and fast shipping across India.\n        \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: linear-gradient(to right, #f8f9fa, #ffffff); padding: 25px; border-radius: 8px; margin-bottom: 30px; box-shadow: 0 2px 5px rgba(0,0,0,0.05);\"\u003e\n        \u003ch3 style=\"color: #2c3e50; margin-top: 0;\"\u003eKey Features\u003c\/h3\u003e\n        \u003cul style=\"list-style-type: none; padding-left: 0;\"\u003e\n            \u003cli style=\"margin-bottom: 15px; padding-left: 20px; border-left: 3px solid #0056b3;\"\u003e\n                \u003cstrong\u003eDigital Optical Monitoring (DOM):\u003c\/strong\u003e Intelligent interface (SFF-8472 compliant) allows real-time monitoring of signal strength, temperature, and voltage for proactive network troubleshooting.\n            \u003c\/li\u003e\n            \u003cli style=\"margin-bottom: 15px; padding-left: 20px; border-left: 3px solid #0056b3;\"\u003e\n                \u003cstrong\u003eExtended Range Connectivity:\u003c\/strong\u003e Supports links up to 550 meters on 50\/125µm OM2 multimode fiber and 220 meters on 62.5\/125µm OM1 fiber.\n            \u003c\/li\u003e\n            \u003cli style=\"margin-bottom: 15px; padding-left: 20px; border-left: 3px solid #0056b3;\"\u003e\n                \u003cstrong\u003eHot-Swappable Design:\u003c\/strong\u003e Allows for easy installation and replacement without powering down the host switch or router, maximizing network uptime.\n            \u003c\/li\u003e\n            \u003cli style=\"margin-bottom: 15px; padding-left: 20px; border-left: 3px solid #0056b3;\"\u003e\n                \u003cstrong\u003eBroad Compatibility:\u003c\/strong\u003e Fully compatible with a wide range of Cisco equipment including Catalyst 2960, 3560, 3750, 3850, and 9000 series switches.\n            \u003c\/li\u003e\n            \u003cli style=\"margin-bottom: 15px; padding-left: 20px; border-left: 3px solid #0056b3;\"\u003e\n                \u003cstrong\u003eHigh Performance:\u003c\/strong\u003e Delivers full-duplex 1 Gbps throughput using standard LC duplex fiber connectors.\n            \u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"margin-bottom: 30px;\"\u003e\n        \u003ch3 style=\"color: #2c3e50;\"\u003eTechnical Specifications\u003c\/h3\u003e\n        \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 15px;\"\u003e\n            \u003ctbody\u003e\n                \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd; width: 40%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eGLC-SX-MMD\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDevice Type\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSFP (mini-GBIC) Transceiver Module\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eForm Factor\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003ePlug-in Module\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eInterface (Bus) Type\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSFP (Small Form-factor Pluggable)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConnectivity Technology\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eWired\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCabling Type\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1000BASE-SX\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eData Link Protocol\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eGigabit Ethernet\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eData Transfer Rate\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1 Gbps (1.25 Gbps line speed)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOptical Wave Length\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e850 nm\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Transfer Distance\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e550 m (OM2\/OM3), 220 m (OM1)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eInterfaces\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1 x Ethernet 1000Base-SX - LC multi-mode x 2\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDOM Support\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eYes (Digital Optical Monitoring)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions (WxDxH)\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.3 cm x 5.7 cm x 0.9 cm\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e75 g\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0°C to 70°C (32°F to 158°F)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCompliant Standards\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eIEEE 802.3z, RoHS, Class 1 Laser\u003c\/td\u003e\n                \u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"margin-bottom: 30px;\"\u003e\n        \u003ch3 style=\"color: #2c3e50;\"\u003eTechnical Insight: GLC-SX-MMD vs GLC-SX-MM\u003c\/h3\u003e\n        \u003cp\u003eMany customers ask about the difference between these two popular models. The primary advantage of the \u003cstrong\u003eMMD\u003c\/strong\u003e model is the inclusion of Digital Optical Monitoring.\u003c\/p\u003e\n        \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; margin-top: 15px;\"\u003e\n            \u003ctr style=\"background-color: #2c3e50; color: white;\"\u003e\n                \u003cth style=\"padding: 12px; text-align: left;\"\u003eFeature\u003c\/th\u003e\n                \u003cth style=\"padding: 12px; text-align: left;\"\u003eGLC-SX-MM (Legacy)\u003c\/th\u003e\n                \u003cth style=\"padding: 12px; text-align: left;\"\u003eGLC-SX-MMD (Current)\u003c\/th\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDOM\/DDM Capability\u003c\/strong\u003e\u003c\/td\u003e\n                \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eNo\u003c\/td\u003e\n                \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eYes (Supported)\u003c\/strong\u003e\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n                \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n                \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eCommercial (0-70°C)\u003c\/td\u003e\n                \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eExtended (Some revisions)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTroubleshooting\u003c\/strong\u003e\u003c\/td\u003e\n                \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eBasic Link Status only\u003c\/td\u003e\n                \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eReal-time light levels \u0026amp; temp\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background-color: #fcfcfc; border: 1px solid #eee; padding: 25px; border-radius: 8px; margin-bottom: 30px;\"\u003e\n        \u003ch3 style=\"color: #2c3e50; margin-top: 0;\"\u003eWhy Choose Refurbished from ServerDukan?\u003c\/h3\u003e\n        \u003cp\u003e\n            Purchasing refurbished networking equipment is a smart strategy for IT budgets. At ServerDukan, \"Refurbished\" means \u003cstrong\u003eReliability\u003c\/strong\u003e. Every Cisco GLC-SX-MMD module undergoes a multi-step testing process by certified technicians. We specifically test the \u003cstrong\u003eoptical transmit power (dBm)\u003c\/strong\u003e and \u003cstrong\u003ereceive sensitivity\u003c\/strong\u003e to ensure the laser has not degraded and matches original factory specifications.\n        \u003c\/p\u003e\n        \u003cp\u003e\n            By choosing refurbished, you save up to \u003cstrong\u003e80% off the list price\u003c\/strong\u003e without sacrificing performance. This allows you to acquire spare modules for redundancy or expand your network for a fraction of the cost. All units are cleaned, reset, and packaged in anti-static protection. With our \u003cstrong\u003e1-Month Warranty\u003c\/strong\u003e and immediate availability, you get enterprise-grade hardware with total peace of mind.\n        \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"margin-bottom: 30px;\"\u003e\n        \u003ch3 style=\"color: #2c3e50;\"\u003eCompatibility Matrix\u003c\/h3\u003e\n        \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd;\"\u003e\n            \u003cthead\u003e\n                \u003ctr style=\"background-color: #0056b3; color: white;\"\u003e\n                    \u003cth style=\"padding: 12px; text-align: left;\"\u003eProduct Series\u003c\/th\u003e\n                    \u003cth style=\"padding: 12px; text-align: left;\"\u003eCompatible Models\u003c\/th\u003e\n                    \u003cth style=\"padding: 12px; text-align: left;\"\u003eTypical Use Case\u003c\/th\u003e\n                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCisco Catalyst 2960 Series\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2960-X, 2960-S, 2960-Plus\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eAccess Layer Switching\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCisco Catalyst 3650\/3850\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eAll SFP-supported models\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eStackable Access\/Aggregation\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCisco Catalyst 9000\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eC9200, C9300, C9400, C9500\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eModern Enterprise Core\/Access\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCisco ISR Routers\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eISR 4000, 1000 Series\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eWAN Edge Connectivity\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eData Center\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eNexus 2000\/3000\/5000\/7000\u003c\/td\u003e\n                    \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eServer Connectivity\u003c\/td\u003e\n                \u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"margin-bottom: 30px;\"\u003e\n        \u003ch3 style=\"color: #2c3e50;\"\u003eIdeal Use Cases \u0026amp; Deployment Scenarios\u003c\/h3\u003e\n        \u003cul style=\"list-style-type: none; padding-left: 0;\"\u003e\n            \u003cli style=\"margin-bottom: 20px;\"\u003e\n                \u003cstrong\u003eCampus LAN Distribution:\u003c\/strong\u003e Perfect for connecting access layer switches in different buildings or floors to a central distribution switch using existing multimode fiber backbones within 550 meters.\n            \u003c\/li\u003e\n            \u003cli style=\"margin-bottom: 20px;\"\u003e\n                \u003cstrong\u003eServer Uplinks:\u003c\/strong\u003e Use the GLC-SX-MMD to provide high-speed 1Gbps uplinks from servers to Top-of-Rack (ToR) switches in data center environments.\n            \u003c\/li\u003e\n            \u003cli style=\"margin-bottom: 20px;\"\u003e\n                \u003cstrong\u003eStorage Area Networks (SAN):\u003c\/strong\u003e Suitable for IP-based storage networking where reliable, short-range fiber connectivity is required between storage arrays and controllers.\n            \u003c\/li\u003e\n            \u003cli style=\"margin-bottom: 20px;\"\u003e\n                \u003cstrong\u003eISP \u0026amp; Telecom Aggregation:\u003c\/strong\u003e Used by internet service providers for short-haul fiber aggregation links in Points of Presence (PoPs) or central offices.\n            \u003c\/li\u003e\n            \u003cli style=\"margin-bottom: 20px;\"\u003e\n                \u003cstrong\u003eIndustrial Factory Floors:\u003c\/strong\u003e When housed in compatible industrial switches, these modules provide fiber isolation against electromagnetic interference (EMI) common in manufacturing environments.\n            \u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"margin-bottom: 30px;\"\u003e\n        \u003ch3 style=\"color: #2c3e50;\"\u003eWhat's Included\u003c\/h3\u003e\n        \u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n            \u003cli\u003e1x Cisco GLC-SX-MMD 1000BASE-SX SFP Transceiver Module (Certified Refurbished)\u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"warranty-badge\" style=\"background-color: #fff3cd; padding: 20px; margin-top: 25px; border-left: 5px solid #ffc107; border-radius: 5px; color: #856404;\"\u003e\n        \u003cstrong\u003e🛡️ Quality Assurance:\u003c\/strong\u003e Every unit is thoroughly tested for optical signal strength and connector cleanliness. We stand behind our quality with a comprehensive 1-Month Warranty.\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"shipping-info\" style=\"background-color: #e3f2fd; padding: 20px; margin-top: 15px; border-left: 5px solid #2196f3; border-radius: 5px; color: #0c5460;\"\u003e\n        \u003cstrong\u003e🚚 Fast Delivery:\u003c\/strong\u003e Express shipping available to Delhi NCR, Mumbai, Bangalore, Pune, Hyderabad, Chennai, Kolkata, and 500+ cities across India. Secure anti-static packaging ensures safe arrival. Same-day dispatch for orders confirmed before 2 PM.\n    \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"ServerDukan","offers":[{"title":"Default Title","offer_id":48562280759520,"sku":null,"price":1200.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/4120\/0352\/files\/cisco-glc-sx-mmd.webp?v=1768725238","url":"https:\/\/serverdukan.com\/products\/cisco-glc-sx-mmd","provider":"ServerDukan","version":"1.0","type":"link"}