{"product_id":"switch-3com-5500g-ei-48-ports-gigabit-layer-3-teste-fonctionnel","title":"🌐 3Com 5500G-EI Switch 48 Ports Gigabit Layer 3 Tested Functional ⚡","description":"  \u003clink href=\"\/\/open.inkfrog.com\/templates\/designer\/styles\/user\/53111.css\" rel=\"stylesheet\" type=\"text\/css\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta content=\"width=device-width, initial-scale=1.0\" name=\"viewport\"\u003e\u003cstyle\u003e body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; background-color: #f5f5f5; } .container { max-width: 900px; margin: 0 auto; background: #ffffff; padding: 0; } .header { background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%); color: white; padding: 30px; text-align: center; border-radius: 0; } .header h1 { margin: 0; font-size: 28px; font-weight: 600; line-height: 1.4; } .content-section { padding: 30px; background: white; } .section-title { color: #1e3c72; font-size: 22px; font-weight: 600; margin: 30px 0 15px 0; padding-bottom: 10px; border-bottom: 3px solid #2a5298; display: flex; align-items: center; } .section-title .emoji { margin-right: 10px; font-size: 26px; } .highlight-box { background: #e8f0fe; border-left: 4px solid #2a5298; padding: 20px; margin: 20px 0; border-radius: 4px; } .specs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; margin: 20px 0; } .spec-item { background: #f8f9fa; padding: 15px; border-radius: 6px; border: 1px solid #dee2e6; } .spec-label { font-weight: 600; color: #1e3c72; margin-bottom: 5px; } .spec-value { color: #495057; } .feature-list { list-style: none; padding: 0; margin: 20px 0; } .feature-list li { padding: 12px 0; border-bottom: 1px solid #e9ecef; display: flex; align-items: flex-start; } .feature-list li:last-child { border-bottom: none; } .feature-list li:before { content: \"✓\"; color: #2a5298; font-weight: bold; font-size: 20px; margin-right: 12px; } .faq-item { margin: 20px 0; background: #f8f9fa; padding: 20px; border-radius: 6px; border-left: 4px solid #2a5298; } .faq-question { font-weight: 600; color: #1e3c72; margin-bottom: 10px; font-size: 16px; } .faq-answer { color: #495057; line-height: 1.6; } .warning-box { background: #fff3cd; border-left: 4px solid #ffc107; padding: 15px; margin: 20px 0; border-radius: 4px; } .guarantee-box { background: #d4edda; border-left: 4px solid #28a745; padding: 20px; margin: 20px 0; border-radius: 4px; } @media (max-width: 768px) { .header h1 { font-size: 22px; } .content-section { padding: 20px; } .specs-grid { grid-template-columns: 1fr; } } \u003c\/style\u003e\u003cmeta content=\"Switch 3Com 5500G-EI 48 Ports Gigabit Layer 3 testé, 48x RJ45 +4 SFP, capacité 232 Gbps, occasion avec garantie 30 jours.\" name=\"description\"\u003e   \u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"header\"\u003e\u003ch1\u003e🌐 3Com SuperStack 4 5500G-EI 48-Port Gigabit Layer 3 Switch - Tested and Functional ⚡\u003c\/h1\u003e\u003c\/div\u003e\n\u003cdiv class=\"content-section\"\u003e\n\u003cdiv class=\"highlight-box\"\u003e\n\u003cstrong\u003eHigh-performance enterprise professional switch\u003c\/strong\u003e - The 3Com SuperStack 4 5500G-EI is a professional-grade Layer 3 Gigabit Ethernet switch offering 48 10\/100\/1000 Mbps ports with 4 shared SFP ports for fiber optics. Tested and verified functional, this switch is ideal for enterprise networks requiring high performance and exceptional reliability. Photos are for illustration only; only the listing content is authoritative for the exact product reference and included accessories. If in doubt, please contact us. \u003c\/div\u003e\n\u003ch2 class=\"section-title\"\u003e\n\u003cspan class=\"emoji\"\u003e📋\u003c\/span\u003e Full Technical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"specs-grid\"\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eManufacturer Reference\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e3CR17255-91\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBrand\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e3Com\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eModel\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSuperStack 4 Switch 5500G-EI 48-Port\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSwitch Type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eLayer 3 Gigabit Ethernet\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eEthernet Ports\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e48 x RJ-45 10\/100\/1000Base-T\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSFP Ports\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e4 x shared Gigabit SFP ports\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSwitching Capacity\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 232 Gbps\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eThroughput Rate\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e142.3 Mpps maximum\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eStacking Ports\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2 x XRN (48Gbps full-duplex each)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConsole Port\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1 x RJ-45\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003ePower Supply\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e90-240 VAC, 50\/60 Hz\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMax Power Consumption\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e142W\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDimensions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e440 x 450 x 45 mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eApproximate Weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.15 kg\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMTBF\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e25 years (219,000 hours)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCondition\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUsed - Tested and Functional\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"section-title\"\u003e\n\u003cspan class=\"emoji\"\u003e⚙️\u003c\/span\u003e Advanced Network Features\u003c\/h2\u003e\n\u003cul class=\"feature-list\"\u003e\n\u003cli\u003eLayer 3 switching with advanced IP routing for optimal network segmentation\u003c\/li\u003e\n\u003cli\u003eSupport for IGMP routing protocols for efficient multicast management\u003c\/li\u003e\n\u003cli\u003e802.1X authentication for enhanced network access security\u003c\/li\u003e\n\u003cli\u003eAdvanced VLANs for network traffic segmentation and isolation\u003c\/li\u003e\n\u003cli\u003eQuality of Service (QoS) for intelligent traffic prioritization\u003c\/li\u003e\n\u003cli\u003eExpansion slot for additional modules (10-Gigabit available)\u003c\/li\u003e\n\u003cli\u003eXRN stacking allowing up to 8 units in a stack (448 Gigabit ports)\u003c\/li\u003e\n\u003cli\u003eSupport for redundant -48 VDC power supply for high availability\u003c\/li\u003e\n\u003cli\u003eManagement via RJ-45 console, web interface, or SNMP\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"section-title\"\u003e\n\u003cspan class=\"emoji\"\u003e📦\u003c\/span\u003e Delivery Contents\u003c\/h2\u003e\n\u003cul class=\"feature-list\"\u003e\n\u003cli\u003e1 x 3Com SuperStack 4 5500G-EI 48-Port Switch (3CR17255-91)\u003c\/li\u003e\n\u003cli\u003e1 x Power cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"section-title\"\u003e\n\u003cspan class=\"emoji\"\u003e✅\u003c\/span\u003e Benefits For You\u003c\/h2\u003e\n\u003cdiv class=\"guarantee-box\"\u003e\u003cul class=\"feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e30-Day Warranty\u003c\/strong\u003e - Full protection on your purchase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure and Fast Shipping\u003c\/strong\u003e - Professional packaging with carrier tracking number\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested Product\u003c\/strong\u003e - Each switch is checked before shipping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentic Equipment\u003c\/strong\u003e - 100% original 3Com equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Invoice\u003c\/strong\u003e - Invoice with 0% VAT in paper format included with each package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional seller\u003c\/strong\u003e - Company specialized in network equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003ch2 class=\"section-title\"\u003e\n\u003cspan class=\"emoji\"\u003e💼\u003c\/span\u003e Professional Applications\u003c\/h2\u003e\n\u003cp\u003eThis 3Com 5500G-EI switch is perfectly suited for various professional applications including medium and large enterprise networks, data center infrastructures, university campus environments, industrial networks requiring high reliability, and server configurations with link aggregation. Its high switching capacity and Layer 3 features make it an ideal solution for demanding environments.\u003c\/p\u003e\n\u003cdiv class=\"warning-box\"\u003e\n\u003cstrong\u003e⚠️ Important Information:\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003eWe do not provide any technical support, configuration, or software assistance\u003c\/li\u003e\n\u003cli\u003eThe buyer is responsible for hardware configuration and integration\u003c\/li\u003e\n\u003cli\u003eThe switch is sold without network cables, stacking cables, or optional modules\u003c\/li\u003e\n\u003cli\u003eSystem configuration reset to factory settings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"section-title\"\u003e\n\u003cspan class=\"emoji\"\u003e❓\u003c\/span\u003e Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ1: Is this 3Com 5500G-EI switch compatible with current network equipment?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eYes, this Gigabit Ethernet switch is fully compatible with all standard network equipment complying with IEEE 802.3 standards. It works perfectly with switches, routers, and servers from all brands (Cisco, HP, Dell, Netgear, etc.). The 48 ports automatically negotiate speeds of 10\/100\/1000 Mbps for maximum compatibility.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ2: What is the difference between the RJ-45 ports and the SFP ports on this manageable switch?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eThe 48 RJ-45 10\/100\/1000Base-T ports use standard copper Ethernet cables (Cat5e\/Cat6) with a maximum range of 100 meters. The 4 SFP (Small Form-factor Pluggable) ports accept optical modules for fiber optic connections, allowing much longer distances (up to several kilometers depending on the module). On this 3Com SuperStack model, 4 ports are dual-purpose, allowing the use of either the RJ-45 port or the corresponding SFP port.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ3: Can the 3Com 5500G-EI Layer 3 switch be stacked with other units?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eAbsolutely! This switch features 2 XRN (eXpandable Resilient Networking) ports allowing you to create a stack of up to 8 5500G-EI switches, managed as a single entity with one IP address. XRN technology offers a stacking bandwidth of 48 Gbps full-duplex per port, enabling high-performance interconnection between stacked units for a total of up to 448 Gigabit ports.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ4: Does this 3Com network switch support VLANs and inter-VLAN routing?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eYes, as a Layer 3 switch, the 3Com 5500G-EI fully supports VLANs (Virtual Local Area Networks) as well as native inter-VLAN routing. You can create and manage multiple VLANs to segment your network, and the switch will route between these VLANs without needing an external router. It also supports advanced protocols like spanning tree, link aggregation, and QoS management to optimize enterprise network performance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ5: What warranty and support are offered with this used Gigabit switch?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eWe offer a 30-day warranty covering any hardware defects. The switch has been thoroughly tested before shipment to ensure proper operation. Each order includes a professional invoice with 0% VAT and secure shipping with tracking number. However, we do not provide technical support, software configuration, or installation assistance. The equipment is sold for use by qualified IT professionals capable of configuring and managing professional network switches.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ6: Can I use this 3Com switch for a PoE (Power over Ethernet) network?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eThis specific model (3CR17255-91) is the standard version without built-in PoE. For Power over Ethernet IEEE 802.3af support, you would need the 3CR17253-91 (PWR version) equipped with a PoE-compatible power supply. However, this switch delivers excellent performance for all standard network equipment and remains a reliable professional solution for enterprise infrastructures that do not require PoE.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003eQ7: Is the switch noisy and what is its actual power consumption?\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003eThe 3Com SuperStack 4 5500G-EI 48-Port generates a noise level of about 53 decibels, comparable to a normal conversation, which is standard for an enterprise switch with active cooling. The maximum power consumption is 142W, but under normal use with moderate load, it typically ranges between 80-100W. The switch features an energy-efficient design and excellent reliability with an MTBF of 25 years, ensuring durable and economical operation.\u003c\/div\u003e\n\u003c\/div\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":53964748587331,"sku":"RDC M5 5500G-EI","price":44.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1737\/6915\/files\/10_72bd777d-0f89-4e02-99ce-0e9db9c7f658.jpg?v=1765202141","url":"https:\/\/itandoffice.com\/en\/products\/3com-5500g-ei-switch-48-ports-gigabit-layer-3-tested-functional","provider":"IT And Office","version":"1.0","type":"link"}