{"product_id":"mellanox-connectx-5-cx516a-en-2-port-qsfp28-50gbe-network-card-mcx516a-gcat","title":"Mellanox ConnectX-5 CX516A EN 2 Port QSFP28 50GbE Network Card MCX516A-GCAT","description":"\u003ch2 data-end=\"208\" data-start=\"138\" style=\"text-align: justify;\"\u003eMellanox ConnectX-5 CX516A EN 2-Port QSFP28 50GbE Network Adapter\u003c\/h2\u003e\n\n\u003cp data-end=\"234\" data-start=\"209\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"234\" data-start=\"209\"\u003eMCX516A-GCAT \/ CX516A\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp data-end=\"614\" data-start=\"236\" style=\"text-align: justify;\"\u003eThe \u003cstrong data-end=\"273\" data-start=\"240\"\u003eMellanox ConnectX-5 CX516A EN\u003c\/strong\u003e is a \u003cstrong data-end=\"335\" data-start=\"279\"\u003edual-port 50Gb Ethernet network interface card (NIC)\u003c\/strong\u003e designed for \u003cstrong data-end=\"437\" data-start=\"349\"\u003ehigh-performance computing (HPC), cloud infrastructure, and data-intensive workloads\u003c\/strong\u003e. Built on the ConnectX-5 architecture, it delivers \u003cstrong data-end=\"553\" data-start=\"489\"\u003elow latency, high throughput, and advanced hardware offloads\u003c\/strong\u003e to significantly reduce CPU overhead in modern data centers.\u003c\/p\u003e\n\n\u003chr data-end=\"619\" data-start=\"616\"\u003e\n\u003ch3 data-end=\"651\" data-start=\"621\" style=\"text-align: justify;\"\u003ePart Number Identification\u003c\/h3\u003e\n\n\u003cp data-end=\"740\" data-start=\"652\" style=\"text-align: justify;\"\u003eThe following part numbers reference the \u003cstrong data-end=\"739\" data-start=\"693\"\u003esame Mellanox ConnectX-5 CX516A EN adapter\u003c\/strong\u003e:\u003c\/p\u003e\n\n\u003cul data-end=\"846\" data-start=\"742\"\u003e\n\t\u003cli data-end=\"801\" data-start=\"742\"\u003e\n\t\u003cp data-end=\"801\" data-start=\"744\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"760\" data-start=\"744\"\u003eMCX516A-GCAT\u003c\/strong\u003e – Mellanox \/ NVIDIA Retail Part Number\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli data-end=\"846\" data-start=\"802\"\u003e\n\t\u003cp data-end=\"846\" data-start=\"804\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"814\" data-start=\"804\"\u003eCX516A\u003c\/strong\u003e – Chipset \/ Series Identifier\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr data-end=\"851\" data-start=\"848\"\u003e\n\u003ch3 data-end=\"885\" data-start=\"853\" style=\"text-align: justify;\"\u003eDevice Type \u0026amp; Classification\u003c\/h3\u003e\n\n\u003cul data-end=\"1062\" data-start=\"886\"\u003e\n\t\u003cli data-end=\"944\" data-start=\"886\"\u003e\n\t\u003cp data-end=\"944\" data-start=\"888\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"904\" data-start=\"888\"\u003eDevice Type:\u003c\/strong\u003e Ethernet Network Interface Card (NIC)\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli data-end=\"980\" data-start=\"945\"\u003e\n\t\u003cp data-end=\"980\" data-start=\"947\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"958\" data-start=\"947\"\u003eSeries:\u003c\/strong\u003e Mellanox ConnectX-5\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli data-end=\"1062\" data-start=\"981\"\u003e\n\t\u003cp data-end=\"1062\" data-start=\"983\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1002\" data-start=\"983\"\u003eWorkload Focus:\u003c\/strong\u003e HPC, AI\/ML, cloud, virtualization, and storage networking\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr data-end=\"1067\" data-start=\"1064\"\u003e\n\u003ch3 data-end=\"1091\" data-start=\"1069\" style=\"text-align: justify;\"\u003eKey Specifications\u003c\/h3\u003e\n\n\u003ctable data-end=\"1564\" data-start=\"1092\"\u003e\n\t\u003cthead data-end=\"1121\" data-start=\"1092\"\u003e\n\t\t\u003ctr data-end=\"1121\" data-start=\"1092\"\u003e\n\t\t\t\u003cth data-col-size=\"sm\" data-end=\"1104\" data-start=\"1092\" style=\"text-align: justify;\"\u003eAttribute\u003c\/th\u003e\n\t\t\t\u003cth data-col-size=\"md\" data-end=\"1121\" data-start=\"1104\" style=\"text-align: justify;\"\u003eSpecification\u003c\/th\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/thead\u003e\n\t\u003ctbody data-end=\"1564\" data-start=\"1148\"\u003e\n\t\t\u003ctr data-end=\"1205\" data-start=\"1148\"\u003e\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1173\" data-start=\"1148\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1172\" data-start=\"1150\"\u003eEthernet Data Rate\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd data-col-size=\"md\" data-end=\"1205\" data-start=\"1173\" style=\"text-align: justify;\"\u003e50 Gb\/s per port (dual-port)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr data-end=\"1238\" data-start=\"1206\"\u003e\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1224\" data-start=\"1206\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1223\" data-start=\"1208\"\u003eTotal Ports\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd data-col-size=\"md\" data-end=\"1238\" data-start=\"1224\" style=\"text-align: justify;\"\u003e2 × QSFP28\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr data-end=\"1325\" data-start=\"1239\"\u003e\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1260\" data-start=\"1239\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1259\" data-start=\"1241\"\u003eHost Interface\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd data-col-size=\"md\" data-end=\"1325\" data-start=\"1260\" style=\"text-align: justify;\"\u003ePCI Express 3.0 x16 (backward compatible with PCIe 2.0 \/ 1.1)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr data-end=\"1372\" data-start=\"1326\"\u003e\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1344\" data-start=\"1326\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1343\" data-start=\"1328\"\u003eForm Factor\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd data-col-size=\"md\" data-end=\"1372\" data-start=\"1344\" style=\"text-align: justify;\"\u003eLow-profile plug-in card\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr data-end=\"1454\" data-start=\"1373\"\u003e\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1395\" data-start=\"1373\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1394\" data-start=\"1375\"\u003eCabling Support\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd data-col-size=\"md\" data-end=\"1454\" data-start=\"1395\" style=\"text-align: justify;\"\u003eQSFP28 copper or optical (transceivers sold separately)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr data-end=\"1492\" data-start=\"1455\"\u003e\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1469\" data-start=\"1455\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1468\" data-start=\"1457\"\u003eLatency\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd data-col-size=\"md\" data-end=\"1492\" data-start=\"1469\" style=\"text-align: justify;\"\u003eSub-700 nanoseconds\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr data-end=\"1564\" data-start=\"1493\"\u003e\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1512\" data-start=\"1493\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1511\" data-start=\"1495\"\u003eMessage Rate\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd data-col-size=\"md\" data-end=\"1564\" data-start=\"1512\" style=\"text-align: justify;\"\u003eVery high message throughput (optimized for HPC)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cblockquote data-end=\"1708\" data-start=\"1566\"\u003e\n\u003cp data-end=\"1708\" data-start=\"1568\" style=\"text-align: justify;\"\u003e\u003cem data-end=\"1575\" data-start=\"1568\"\u003eNote:\u003c\/em\u003e Some configurations and firmware modes may support \u003cstrong data-end=\"1663\" data-start=\"1627\"\u003eup to 100GbE aggregate bandwidth\u003c\/strong\u003e, depending on system and port configuration.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr data-end=\"1713\" data-start=\"1710\"\u003e\n\u003ch3 data-end=\"1751\" data-start=\"1715\" style=\"text-align: justify;\"\u003eOffloads \u0026amp; Acceleration Features\u003c\/h3\u003e\n\n\u003cul data-end=\"2025\" data-start=\"1752\"\u003e\n\t\u003cli data-end=\"1795\" data-start=\"1752\"\u003e\n\t\u003cp data-end=\"1795\" data-start=\"1754\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1793\" data-start=\"1754\"\u003eRDMA over Converged Ethernet (RoCE)\u003c\/strong\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli data-end=\"1844\" data-start=\"1796\"\u003e\n\t\u003cp data-end=\"1844\" data-start=\"1798\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1842\" data-start=\"1798\"\u003eNVMe over Fabrics (NVMf) target offloads\u003c\/strong\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli data-end=\"1889\" data-start=\"1845\"\u003e\n\t\u003cp data-end=\"1889\" data-start=\"1847\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1887\" data-start=\"1847\"\u003eOpen vSwitch (OvS) hardware offloads\u003c\/strong\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli data-end=\"1947\" data-start=\"1890\"\u003e\n\t\u003cp data-end=\"1947\" data-start=\"1892\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"1945\" data-start=\"1892\"\u003eAdvanced packet processing and congestion control\u003c\/strong\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli data-end=\"2025\" data-start=\"1948\"\u003e\n\t\u003cp data-end=\"2025\" data-start=\"1950\" style=\"text-align: justify;\"\u003e\u003cstrong data-end=\"2025\" data-start=\"1950\"\u003eCPU offload acceleration for virtualized and containerized environments\u003c\/strong\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr data-end=\"2030\" data-start=\"2027\"\u003e\n\u003ch3 data-end=\"2061\" data-start=\"2032\" style=\"text-align: justify;\"\u003eCompatibility \u0026amp; Use Cases\u003c\/h3\u003e\n\n\u003cul data-end=\"2358\" data-start=\"2062\"\u003e\n\t\u003cli data-end=\"2116\" data-start=\"2062\"\u003e\n\t\u003cp data-end=\"2116\" data-start=\"2064\" style=\"text-align: justify;\"\u003eCompatible with \u003cstrong data-end=\"2114\" data-start=\"2080\"\u003estandard PCIe x16 server slots\u003c\/strong\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli data-end=\"2193\" data-start=\"2117\"\u003e\n\t\u003cp data-end=\"2193\" data-start=\"2119\" style=\"text-align: justify;\"\u003eSupported across \u003cstrong data-end=\"2167\" data-start=\"2136\"\u003eLinux, Windows, VMware ESXi\u003c\/strong\u003e, and major cloud stacks\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli data-end=\"2358\" data-start=\"2194\"\u003e\n\t\u003cp data-end=\"2206\" data-start=\"2196\" style=\"text-align: justify;\"\u003eIdeal for:\u003c\/p\u003e\n\n\t\u003cul data-end=\"2358\" data-start=\"2209\"\u003e\n\t\t\u003cli data-end=\"2243\" data-start=\"2209\"\u003e\n\t\t\u003cp data-end=\"2243\" data-start=\"2211\" style=\"text-align: justify;\"\u003eHigh-performance computing (HPC)\u003c\/p\u003e\n\t\t\u003c\/li\u003e\n\t\t\u003cli data-end=\"2277\" data-start=\"2246\"\u003e\n\t\t\u003cp data-end=\"2277\" data-start=\"2248\" style=\"text-align: justify;\"\u003eData analytics \u0026amp; AI workloads\u003c\/p\u003e\n\t\t\u003c\/li\u003e\n\t\t\u003cli data-end=\"2317\" data-start=\"2280\"\u003e\n\t\t\u003cp data-end=\"2317\" data-start=\"2282\" style=\"text-align: justify;\"\u003eCloud and hyperscale infrastructure\u003c\/p\u003e\n\t\t\u003c\/li\u003e\n\t\t\u003cli data-end=\"2358\" data-start=\"2320\"\u003e\n\t\t\u003cp data-end=\"2358\" data-start=\"2322\" style=\"text-align: justify;\"\u003eSoftware-defined storage and NVMe-oF\u003c\/p\u003e\n\t\t\u003c\/li\u003e\n\t\u003c\/ul\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Mellanox","offers":[{"title":"Default Title","offer_id":55475531808841,"sku":"MCX516A-GCAT","price":303.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3868\/3209\/files\/ad76cee0-5e4f-5f66-be71-26dc61087ee7.png?v=1770149455","url":"https:\/\/parts.theserverstore.com\/products\/mellanox-connectx-5-cx516a-en-2-port-qsfp28-50gbe-network-card-mcx516a-gcat","provider":"The Server Store Parts","version":"1.0","type":"link"}