{"product_id":"lenovo-nvidia-mellanox-cx4121a-connectx-4-lx-dual-port-sfp28-25gbe-pcie-3-0-x8-network-interface-card-nic-01gr253","title":"Lenovo NVIDIA Mellanox CX4121A ConnectX-4 Lx Dual Port SFP28 25GbE PCIe 3.0 x8 Network Interface Card (NIC) 01GR253","description":"\u003cp\u003e\u003c!--StartFragment--\u003e\u003cmeta content=\"text\/html; charset=us-ascii\" http-equiv=\"Content-Type\"\u003e\n\u003cstyle type=\"text\/css\"\u003ea {\n    text-decoration: none;\n    color: #464feb;\n}\ntr th, tr td {\n    border: 1px solid #e6e6e6;\n}\ntr th {\n    background-color: #f5f5f5;\n}\n\u003c\/style\u003e\n\u003c\/p\u003e\n\n\u003ch1 style=\"text-align: justify;\"\u003eLenovo NVIDIA Mellanox ConnectX-4 Lx CX4121A Dual Port SFP28 25GbE PCIe 3.0 x8 Network Interface Card (NIC) 01GR253\u003c\/h1\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe \u003cstrong\u003eLenovo NVIDIA Mellanox ConnectX-4 Lx CX4121A (01GR253)\u003c\/strong\u003e is a high-performance dual-port Ethernet network adapter designed for cloud computing, data centers, virtualization platforms, hyper-converged infrastructure, and software-defined storage environments. Based on the \u003cstrong\u003eMellanox ConnectX-4 Lx EN\u003c\/strong\u003e architecture and OEM model \u003cstrong\u003eMCX4121A-ACAT\u003c\/strong\u003e, this Ethernet-only adapter delivers outstanding performance, low latency, and advanced hardware acceleration while maintaining exceptional power efficiency.\u003c\/p\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eDesigned with a \u003cstrong\u003ePCI Express 3.0 x8 interface\u003c\/strong\u003e, the ConnectX-4 Lx supports up to \u003cstrong\u003e25GbE per port\u003c\/strong\u003e and offers seamless backward compatibility with existing 10GbE infrastructures. Advanced offload technologies help reduce CPU utilization and improve application responsiveness across enterprise workloads.\u003c\/p\u003e\n\n\u003ch2 style=\"text-align: justify;\"\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eLenovo Part Number: \u003cstrong\u003e01GR253\u003c\/strong\u003e\n\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eAlternate Part Number: \u003cstrong\u003e01GR250\u003c\/strong\u003e\n\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eMellanox Model: \u003cstrong\u003eCX4121A\u003c\/strong\u003e\n\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eOEM Model: \u003cstrong\u003eMCX4121A-ACAT\u003c\/strong\u003e\n\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eMellanox ConnectX-4 Lx EN Controller\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eDual-Port SFP28 Connectivity\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eUp to 25GbE Per Port\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSupports 10GbE and 25GbE Networks\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003ePCI Express 3.0 x8 Interface\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eEthernet-Only Architecture\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eRoCE v1 \u0026amp; RoCE v2 RDMA Support\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSR-IOV Virtualization Support\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eVXLAN, NVGRE \u0026amp; Geneve Offloads\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eIEEE 1588v2 Precision Time Stamping\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eLow Power Consumption (~9.47W)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003ePassive Cooling Design\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSecure PXE and UEFI Boot Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"text-align: justify;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ch3 style=\"text-align: justify;\"\u003eGeneral Information\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eManufacturer: Lenovo (OEM NVIDIA Mellanox)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eLenovo Part Number: 01GR253\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eAlternate Part Number: 01GR250\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eMellanox Base Model: CX4121A\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eOEM Reference Model: MCX4121A-ACAT\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eController: Mellanox ConnectX-4 Lx EN\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eDevice Type: Ethernet Network Interface Card (NIC)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eCooling: Passive Heatsink\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eTypical Power Consumption: 9.47 Watts\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eForm Factor: Low Profile PCIe Adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"text-align: justify;\"\u003eHost Interface\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003ePCI Express 3.0 x8\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eCompatible with PCIe x8 and x16 Slots\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eEnterprise Server Ready\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eLow-Profile Design\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"text-align: justify;\"\u003ePort Configuration\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eDual-Port Adapter\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003e2 x SFP28 Ports\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eEthernet Protocol Only\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSupports SFP28 DAC Cables\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSupports Active Optical Cables (AOC)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSupports SR and LR Optical Transceivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"text-align: justify;\"\u003eNetwork Performance\u003c\/h2\u003e\n\n\u003ch3 style=\"text-align: justify;\"\u003eEthernet Speeds\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003e25 Gigabit Ethernet (25GbE)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003e10 Gigabit Ethernet (10GbE)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eAuto-Negotiation Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"text-align: justify;\"\u003eNetwork Acceleration Technologies\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eRDMA over Converged Ethernet (RoCE v1)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eRDMA over Converged Ethernet (RoCE v2)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSingle Root I\/O Virtualization (SR-IOV)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eUp to 256 Virtual Functions (VFs)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eUp to 16 Physical Functions (PFs)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eVXLAN Offload\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eNVGRE Offload\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eGeneve Offload\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eTCP\/UDP\/IP Checksum Offload\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eLarge Send Offload (LSO)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eLarge Receive Offload (LRO)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eReceive Side Scaling (RSS)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eTransmit Side Scaling (TSS)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eJumbo Frames up to 9600 Bytes\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eIEEE 1588v2 Hardware Time Stamping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"text-align: justify;\"\u003eVirtualization \u0026amp; Cloud Features\u003c\/h2\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe ConnectX-4 Lx is optimized for:\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eVMware Virtualization\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eMicrosoft Hyper-V\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eKVM Virtualization\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eOpenStack Deployments\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eHyper-Converged Infrastructure\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSoftware-Defined Storage\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003ePrivate Cloud Platforms\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003ePublic Cloud Integrations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"text-align: justify;\"\u003eBoot \u0026amp; Management Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSecure PXE Boot\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eUEFI Boot Support\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eRemote Deployment Capabilities\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eEnterprise Network Management Integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"text-align: justify;\"\u003eCompatible Operating Systems\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eMicrosoft Windows Server\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eWindows 10\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eWindows 11\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eRed Hat Enterprise Linux (RHEL)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eCentOS\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eRocky Linux\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eUbuntu Linux\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSUSE Linux Enterprise Server (SLES)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eVMware ESXi\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eLinux OFED Drivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"text-align: justify;\"\u003eCompatible Servers\u003c\/h2\u003e\n\n\u003ch3 style=\"text-align: justify;\"\u003eLenovo ThinkSystem\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSR635\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSR655\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eThinkSystem Platforms with PCIe 3.0 x8\/x16 Slots\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"text-align: justify;\"\u003eAdditional Enterprise Platforms\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eDell PowerEdge Servers\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eHPE ProLiant Servers\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSupermicro Servers\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eLenovo System x Servers\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eCustom Enterprise Servers\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eWhitebox Server Platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"text-align: justify;\"\u003eCompatible Transceivers \u0026amp; Cables\u003c\/h2\u003e\n\n\u003ch3 style=\"text-align: justify;\"\u003eSFP28 Optical Modules\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003e25GBASE-SR\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003e25GBASE-LR\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eNVIDIA Mellanox Compatible SFP28 Modules\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eLenovo Qualified SFP28 Transceivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"text-align: justify;\"\u003eCable Types\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSFP28 Direct Attach Copper (DAC)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSFP28 Active Optical Cable (AOC)\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eFiber Optic Connections\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eTwinax Copper Cables\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"text-align: justify;\"\u003eIdeal Applications\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eEnterprise Data Centers\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eServer Virtualization\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eCloud Infrastructure\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eHyper-Converged Infrastructure\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eHigh-Speed Storage Networks\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eSoftware-Defined Storage\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eDatabase Clusters\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eContainer Platforms\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eAI Infrastructure\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eEdge Computing\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eBackup Networks\u003c\/li\u003e\n\t\u003cli style=\"text-align: justify;\"\u003eHigh-Performance Ethernet Environments\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Mellanox","offers":[{"title":"Default Title","offer_id":41900458999881,"sku":"01GR253","price":46.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/3868\/3209\/files\/28042abe-acdc-5f99-958b-965a01eb591b.png?v=1786836369","url":"https:\/\/parts.theserverstore.com\/products\/lenovo-nvidia-mellanox-cx4121a-connectx-4-lx-dual-port-sfp28-25gbe-pcie-3-0-x8-network-interface-card-nic-01gr253","provider":"The Server Store Parts","version":"1.0","type":"link"}