{"product_id":"switch-3com-superstack-3-3870-48-ports-gigabit-ethernet-administrable","title":"🔷 3Com SuperStack 3 3870 Switch 48 Ports Gigabit Ethernet Managed 🔷","description":"  \u003clink href=\"\/\/open.inkfrog.com\/templates\/designer\/styles\/user\/53111.css\" rel=\"stylesheet\" type=\"text\/css\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstyle\u003ebody { font-family: Arial, sans-serif; margin: 0; padding: 0; background-color: #f5f5f5;}.container { max-width: 900px; margin: 0 auto; background-color: #ffffff; padding: 0;}.header { background: linear-gradient(135deg, #1e5799 0%, #2989d8 50%, #207cca 100%); color: white; padding: 30px; text-align: center; border-radius: 0;}.header h1 { margin: 0; font-size: 28px; font-weight: bold; text-shadow: 2px 2px 4px rgba(0,0,0,0.3);}.section { padding: 25px 30px; border-bottom: 2px solid #e8f4f8;}.section:last-child { border-bottom: none;}.section-title { color: #1e5799; font-size: 22px; font-weight: bold; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 3px solid #2989d8; display: flex; align-items: center;}.section-title span { margin-right: 10px; font-size: 24px;}.content { color: #333; font-size: 15px; line-height: 1.8;}.specs-table { width: 100%; border-collapse: collapse; margin: 15px 0;}.specs-table tr { border-bottom: 1px solid #e0e0e0;}.specs-table td { padding: 12px 15px; font-size: 14px;}.specs-table td:first-child { background-color: #e8f4f8; font-weight: bold; color: #1e5799; width: 40%;}.specs-table td:last-child { background-color: #ffffff;}.highlight-box { background: linear-gradient(to right, #e8f4f8, #ffffff); border-left: 5px solid #2989d8; padding: 15px 20px; margin: 15px 0; border-radius: 5px;}.feature-list { list-style: none; padding: 0; margin: 10px 0;}.feature-list li { padding: 8px 0; padding-left: 30px; position: relative; line-height: 1.6;}.feature-list li:before { content: \"✓\"; position: absolute; left: 0; color: #2989d8; font-weight: bold; font-size: 18px;}.faq-item { background-color: #f9fcff; border: 1px solid #d4e9f7; border-radius: 8px; padding: 15px 20px; margin: 12px 0;}.faq-question { color: #1e5799; font-weight: bold; font-size: 16px; margin-bottom: 8px;}.faq-answer { color: #555; font-size: 14px; line-height: 1.7;}.warranty-box { background: linear-gradient(135deg, #1e5799, #2989d8); color: white; padding: 20px; text-align: center; border-radius: 8px; margin: 20px 0; font-size: 16px; font-weight: bold;}.footer { background-color: #f0f8ff; padding: 20px; text-align: center; color: #666; font-size: 13px; border-top: 3px solid #2989d8;}\u003c\/style\u003e\u003cmeta content=\"Switch 3Com SuperStack 3 3870 48 ports Gigabit administrable, stacking 40 Gbps, 4 ports combo SFP, d'occasion, testé, garantie 30 jours\" name=\"description\"\u003e   \u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"header\"\u003e\u003ch1\u003e🔷 3Com SuperStack 3 Switch 3870 48-Port Gigabit Ethernet Managed Professional Switch 🔷\u003c\/h1\u003e\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"section-title\"\u003e📋 Product Description\u003c\/div\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cp\u003eDiscover the \u003cstrong\u003e3Com SuperStack 3 Switch 3870\u003c\/strong\u003e, a high-performance professional network switch equipped with \u003cstrong\u003e48 Gigabit Ethernet 10\/100\/1000 ports\u003c\/strong\u003e. This managed Layer 2 switch provides a scalable and reliable connectivity solution for enterprise networks, data centers, and demanding network infrastructures.\u003c\/p\u003e\n\u003cp\u003eThanks to its wirespeed switching technology and stacking capacity of up to 8 units via a 40 Gbps stacking architecture, this switch offers impressive scalability up to 384 ports total. It also includes 4 dual-purpose ports supporting copper connections or SFP adapters for maximum flexibility with fiber optic links.\u003c\/p\u003e\n\u003cdiv class=\"highlight-box\"\u003e\n\u003cstrong\u003e⚠️ Important information:\u003c\/strong\u003e Photos are provided for illustration only. Only the content of the listing is authoritative for the exact product reference and included accessories. If in doubt, please contact us before purchasing.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"section-title\"\u003e⚙️ Technical Specifications\u003c\/div\u003e\n\u003cdiv class=\"content\"\u003e\u003ctable class=\"specs-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e3Com SuperStack 3 Switch 3870 (Reference: 3CR17451-91)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of ports\u003c\/td\u003e\n\u003ctd\u003e48 ports 10\/100\/1000 Gigabit Ethernet RJ-45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial ports\u003c\/td\u003e\n\u003ctd\u003e4 dual-purpose ports (copper or SFP for fiber optic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitch type\u003c\/td\u003e\n\u003ctd\u003eManaged Layer 2 (Layer 3 capable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003ctd\u003eWirespeed Gigabit on all ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStacking capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 8 units (384 ports) via 40 Gbps stacking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStacking ports\u003c\/td\u003e\n\u003ctd\u003e2 built-in full duplex 10 Gbps ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVLAN\u003c\/td\u003e\n\u003ctd\u003eIEEE 802.1Q support, up to 255 VLANs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpanning Tree\u003c\/td\u003e\n\u003ctd\u003eSTP, RSTP (IEEE 802.1w), MSTP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLink aggregation\u003c\/td\u003e\n\u003ctd\u003eLACP (IEEE 802.3ad) supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQoS \/ Priority\u003c\/td\u003e\n\u003ctd\u003eIEEE 802.1p, DSCP, TCP\/UDP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecurity\u003c\/td\u003e\n\u003ctd\u003eIEEE 802.1X, MAC port security, RADIUS, ACL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMulticast\u003c\/td\u003e\n\u003ctd\u003eIGMP snooping v1\/v2, 255 multicast groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRouting\u003c\/td\u003e\n\u003ctd\u003eRIP v1\/v2, static routing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManagement\u003c\/td\u003e\n\u003ctd\u003eWeb Interface (HTTP\/HTTPS), CLI (serial\/Telnet\/SSH), SNMP v1\/v2\/v3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow control\u003c\/td\u003e\n\u003ctd\u003eFlow control supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJumbo frames\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMON\u003c\/td\u003e\n\u003ctd\u003e4 groups (Statistics, History, Alarms, Event)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate weight\u003c\/td\u003e\n\u003ctd\u003e5.5 kg (device only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003e3Com (USA \/ China)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"section-title\"\u003e✨ Features and Functionalities\u003c\/div\u003e\n\u003cdiv class=\"content\"\u003e\u003cul class=\"feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Switching\u003c\/strong\u003e: Wirespeed performance on all 48 Gigabit ports for optimal throughput without bottlenecks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Scalability\u003c\/strong\u003e: 40 Gbps stacking architecture allowing up to 8 switches to be stacked for a total of 384 ports\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Flexibility\u003c\/strong\u003e: 4 combo ports supporting copper connections or SFP modules for fiber optic integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Network Security\u003c\/strong\u003e: 802.1X authentication, MAC port access control, RADIUS support, and access control lists (ACL)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Network Management\u003c\/strong\u003e: VLAN support (802.1Q), Spanning Tree (STP\/RSTP\/MSTP), LACP link aggregation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality of Service\u003c\/strong\u003e: Traffic prioritization 802.1p, DSCP, and per TCP\/UDP port for critical applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulticast Optimization\u003c\/strong\u003e: IGMP snooping for efficient multicast traffic distribution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRouting Capabilities\u003c\/strong\u003e: Supports RIP v1\/v2 and static routing for network segmentation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Management\u003c\/strong\u003e: Intuitive web interface, command line (CLI), SNMP v1\/v2\/v3 for integration into monitoring systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadcast Control\u003c\/strong\u003e: Protection against broadcast storms for optimal network stability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Mirroring\u003c\/strong\u003e: Roving analysis function for network traffic diagnosis and analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBandwidth Limiting\u003c\/strong\u003e: Rate limiting with 1 Mbps resolution per port\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"section-title\"\u003e📦 Condition and Contents\u003c\/div\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"highlight-box\"\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Professional used product, fully tested and verified in perfect working order.\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded in this sale:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"feature-list\"\u003e\n\u003cli\u003e1x Tested and functional 3Com SuperStack 3 3870 48-port switch\u003c\/li\u003e\n\u003cli\u003e1x Power cable\u003c\/li\u003e\n\u003cli\u003e2x Rack mounting hooks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e✓ All our refurbished equipment is\u003c\/strong\u003e carefully tested by our qualified technicians to ensure proper functioning. This switch has been checked on all its ports and main features.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"section-title\"\u003e🎯 Customer Benefits\u003c\/div\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cul class=\"feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e30-Day Professional Warranty\u003c\/strong\u003e: Full protection against any operational defects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure and Fast Shipping\u003c\/strong\u003e: Package carefully packed with carrier tracking number\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Invoice\u003c\/strong\u003e: Invoice with 0% VAT in paper format included with every package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentic Equipment\u003c\/strong\u003e: Original 3Com gear, no counterfeits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomer Support\u003c\/strong\u003e: Our team is available to answer your questions before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"warranty-box\"\u003e🛡️ 30-DAY WARRANTY - TRACKED AND SECURE SHIPPING 🛡️\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"section-title\"\u003e⚠️ Important Information\u003c\/div\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"highlight-box\"\u003e\n\u003cp\u003e\u003cstrong\u003eSoftware Disclaimer:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis switch is sold with its original preinstalled operating system. We provide \u003cstrong\u003eno technical support\u003c\/strong\u003e regarding configuration, programming, or software troubleshooting of this equipment. The buyer must have the necessary technical skills to configure and manage this type of professional network hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 15px;\"\u003eThe switch comes with its factory configuration or a basic setup. Official technical documentation and administration guides are available on specialized websites and technical forums.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"section-title\"\u003e❓ Frequently Asked Questions (FAQ)\u003c\/div\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ1: Is this Gigabit Ethernet switch compatible with my existing network?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eYes, the 3Com SuperStack 3870 is fully compatible with all standard network equipment. Its 48 10\/100\/1000 ports automatically adjust to your devices' speeds (10 Mbps, 100 Mbps, or 1000 Mbps). It complies with IEEE standards and works with all Cat5e or Cat6 Ethernet cables. This manageable switch can be integrated into any enterprise network infrastructure, data center, or professional environment.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ2: Can I stack multiple 3Com 3870 switches together?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eAbsolutely! The SuperStack 3 Switch 3870 has built-in stacking ports allowing you to stack up to 8 units via a high-speed 40 Gbps architecture. This stacking feature lets you manage up to 384 ports as a single switch with one IP address. Stacked switches share configuration, VLANs, and can be centrally managed, greatly simplifying the management of your Gigabit network infrastructure.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ3: What management options are available for this manageable switch?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eThis manageable switch offers several professional administration methods: a web interface via HTTP\/HTTPS for intuitive graphical management, a command-line interface (CLI) accessible via serial port, Telnet, or SSH for experienced administrators, and SNMP v1\/v2\/v3 protocol for integration into your network monitoring tools. You can configure VLANs, QoS, 802.1X security, Spanning Tree, LACP link aggregation, and all advanced Layer 2 features.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ4: Does the switch support VLANs and network segmentation?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eYes, the 3Com 3870 fully supports VLANs according to the IEEE 802.1Q standard with the ability to create up to 255 distinct VLANs. This feature allows you to segment your network into separate broadcast domains, improve security by isolating traffic between departments, and optimize network performance. The switch also manages VLAN tagging, trunk and access ports, as well as automatic VLAN assignment to simplify deployment.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ5: What network security features are included?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eThe SuperStack 3870 includes many professional security features: IEEE 802.1X network authentication to control network access, MAC address security at the port level, RADIUS protocol support for centralized authentication, configurable access control lists (ACLs), and RADA (RADIUS Authenticated Device Access) functionality. The switch also includes broadcast storm control, secure management via HTTPS and SSH, and SNMP v3 support with encryption for secure administration of your manageable network infrastructure.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ6: Can SFP fiber optic modules be used with this switch?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eYes, the 3Com 3870 has 4 dual-purpose combo ports that accept either standard RJ-45 copper connections or SFP (Small Form-factor Pluggable) modules for fiber optic links. These ports offer great flexibility to connect the switch to remote equipment via fiber, create high-speed backbone links, or integrate the switch into an existing mixed copper\/fiber network infrastructure. Ideal for extending your Gigabit network over long distances.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ7: Is the switch suitable for VoIP and real-time applications?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003ePerfect! This professional switch includes advanced Quality of Service (QoS) mechanisms essential for VoIP and latency-sensitive applications. It supports IEEE 802.1p traffic prioritization on 4 queues, DSCP (DiffServ) classification, and TCP\/UDP port-based prioritization. The switch also includes specific support for NBX systems. These features ensure that your voice, video, and critical data traffic always receive the necessary bandwidth and priority, even during network congestion.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"footer\"\u003e\n\u003cp\u003e\u003cstrong\u003eProfessional Seller\u003c\/strong\u003e | Invoice with 0% VAT provided | Fast and careful shipping with tracking\u003c\/p\u003e\n\u003cp style=\"margin-top: 10px;\"\u003eFor any questions regarding this network equipment, please feel free to contact us before your purchase.\u003c\/p\u003e\n\u003cp style=\"margin-top: 10px; font-size: 12px; color: #999;\"\u003e3Com, SuperStack, and all associated logos are registered trademarks of their respective owners.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cimg src=\"https:\/\/hit.inkfrog.com\/t\/hit.gif\" style=\"max-width:100%\"\u003e ","brand":"3com","offers":[{"title":"Default Title","offer_id":53964748849475,"sku":"RDC M5 3870","price":39.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1737\/6915\/files\/10_df72b7ee-dbe5-4784-af01-cbb8bf9cccec.jpg?v=1765202144","url":"https:\/\/itandoffice.com\/en\/products\/3com-superstack-3-3870-switch-48-ports-gigabit-ethernet-manageable","provider":"IT And Office","version":"1.0","type":"link"}