{"product_id":"used-original-sn3700-cs2fc-network-switch-sn3700-cs2fc-datac","title":"Used Original SN3700-CS2FC Network Switch SN3700 CS2FC Datacenter Switch","description":"\u003ch2\u003eNVIDIA Mellanox Spectrum-2 SN3700 36-Port 100GbE QSFP28 Datacenter Switch\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eNVIDIA Mellanox Spectrum-2 SN3700 36-Port 100GbE QSFP28 Datacenter Switch\u003c\/strong\u003e is a high-performance datacenter Ethernet switch powered by the NVIDIA Spectrum-2 ASIC, delivering 7.2 Tbps full duplex of non-blocking throughput with 36 × 100GbE QSFP28 (configurable as 36×100G \/ 72×50G \/ 144×25G \/ 4×200G) ports. Designed for AI\/ML training clusters (GPU interconnect), it provides \u0026lt; 250 ns cut-through cut-through latency and 16 MB shared packet buffer shared packet buffer for lossless RoCE v2 RDMA transport.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eCondition: Refurbished \/ Pre-owned — fully tested, cleaned, and verified. Ships with warranty coverage.\u003c\/em\u003e\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:12px 0;font-size:14px;\"\u003e\\\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"background:#f8f9fa;padding:8px;border:1px solid #dee2e6;width:35%;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"background:#f8f9fa;padding:8px;border:1px solid #dee2e6;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\\\n\u003ctbody\u003e\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChip\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpectrum-2\u003c\/td\u003e\n\u003c\/tr\u003e\\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePorts\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e36 × 100GbE QSFP28 (configurable as 36×100G \/ 72×50G \/ 144×25G \/ 4×200G)\u003c\/td\u003e\n\u003c\/tr\u003e\\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThroughput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.2 Tbps full duplex\u003c\/td\u003e\n\u003c\/tr\u003e\\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLatency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 250 ns cut-through\u003c\/td\u003e\n\u003c\/tr\u003e\\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePacket Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.4 Bpps\u003c\/td\u003e\n\u003c\/tr\u003e\\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuffer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 MB shared packet buffer\u003c\/td\u003e\n\u003c\/tr\u003e\\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 250W typical\u003c\/td\u003e\n\u003c\/tr\u003e\\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e440 × 430 × 43 mm (1U)\u003c\/td\u003e\n\u003c\/tr\u003e\\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1× RJ45 management, 1× micro-USB console\u003c\/td\u003e\n\u003c\/tr\u003e\\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMLNX-OS, Cumulus Linux, SONiC\u003c\/td\u003e\n\u003c\/tr\u003e\\\\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVXLAN, EVPN, RoCE v2, PFC, ECN, DCB, IPv6, sFlow, Advanced Mirroring, NAT, NAT64, VRF, ACL 12K entries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVXLAN\u003c\/li\u003e\n\u003cli\u003eEVPN\u003c\/li\u003e\n\u003cli\u003eRoCE v2\u003c\/li\u003e\n\u003cli\u003ePFC\u003c\/li\u003e\n\u003cli\u003eECN\u003c\/li\u003e\n\u003cli\u003eDCB\u003c\/li\u003e\n\u003cli\u003eIPv6\u003c\/li\u003e\n\u003cli\u003esFlow\u003c\/li\u003e\n\u003cli\u003eAdvanced Mirroring\u003c\/li\u003e\n\u003cli\u003eNAT\u003c\/li\u003e\n\u003cli\u003eNAT64\u003c\/li\u003e\n\u003cli\u003eVRF\u003c\/li\u003e\n\u003cli\u003eACL 12K entries\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cp\u003eAI\/ML training clusters (GPU interconnect), cloud spine-leaf, storage fabrics (NVMe-oF), HPC, telecom edge\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\\\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eWhat is the Mellanox SN3700 switch used for?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eThe SN3700 is a 36-port 100GbE datacenter switch powered by the Spectrum-2 ASIC, optimized for AI\/ML GPU clusters, NVMe-oF storage fabrics, and cloud spine-leaf topologies requiring lossless Ethernet with RoCE v2.\u003c\/p\u003e\u003c\/details\u003e\\\\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eHow does SN3700 compare to SN2700?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eThe SN3700 has 4 more 100G ports (36 vs 32), higher throughput (7.2 vs 6.4 Tbps), lower latency (\u0026lt;250 vs \u0026lt;300 ns), larger buffer (16 vs 12 MB), and supports 200G port mode. It uses the newer Spectrum-2 ASIC with advanced features like NAT, VRF, and larger ACL tables.\u003c\/p\u003e\u003c\/details\u003e\\\\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eCan SN3700 run 200GbE ports?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eYes. The Spectrum-2 ASIC supports 200GbE mode on 4 QSFP28-DD ports (using 2×100G per port), enabling mixed-speed deployments.\u003c\/p\u003e\u003c\/details\u003e\\\\n\u003cdetails style=\"margin:8px 0;padding:8px;border:1px solid #e0e0e0;border-radius:4px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;\"\u003eDoes SN3700 support RoCE for RDMA?\u003c\/summary\u003e\u003cp style=\"margin:8px 0 0;color:#444;\"\u003eYes. The SN3700 fully supports RoCE v2 (RDMA over Converged Ethernet) with PFC and ECN for lossless transport—critical for GPU-to-GPU communication in AI training.\u003c\/p\u003e\u003c\/details\u003e\n\u003cp\u003e\u003cem\u003eAvailable at \u003ca href=\"https:\/\/zhongxindata.hk\"\u003eZhongxin Data\u003c\/a\u003e — enterprise network hardware specialists. Worldwide shipping from Hong Kong.\u003c\/em\u003e\u003c\/p\u003e","brand":"NVIDIA Mellanox","offers":[{"title":"Default Title","offer_id":55806962893092,"sku":"ALI-1601859676100","price":3267.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1017\/6223\/6708\/files\/Used-Original-SN3700-CS2FC-Network-Switch_8b77e13b-2826-4c89-998f-74f19ef265b4.webp?v=1784862659","url":"https:\/\/zhongxindata.hk\/products\/used-original-sn3700-cs2fc-network-switch-sn3700-cs2fc-datac","provider":"Zhongxin Data","version":"1.0","type":"link"}