The Best 40gb nic of 2025 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best 40gb nic of 2025. Check our ranking below.
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- High-performance network connectivity: Supports dual-port 40Gb Ethernet and FDR-14 InfiniBand, providing up to 56Gbps of bandwidth for high-performance computing and data center environments.
- Low Latency and High Throughput: Supports RDMA (Remote Direct Memory Access) and RoCE (RDMA over Converged Ethernet) with latency as low as 1 microsecond, significantly improving network performance.
- Virtualization Support: Supports SR-IOV (Single Root I/O Virtualization) with up to 127 virtual functions for virtualized server environments and reduced CPU load.
- Multi-protocol compatibility: Compatible with PCIe 3.0, 2.0, and 1.1, supports multiple network protocols (e.g., TCP/UDP/IP, iSCSI, etc.), and supports multiple operating systems (Linux, Windows, VMware, etc.).
- Hardware offload function: supports CORE-Direct and GPUDirect technologies, which can offload application loads and improve data processing efficiency, especially suitable for application scenarios such as clustered databases and high-frequency trading.
- Transmission rate: 40Gbps
- Interface type: QSFP+ Port *2
- Compatible slots:PCI-E X8, PCI-E X16
- Compatible systems: Windows Server 2003/2008/2012, Windows 7/8/10 */Visa, Linux, ESXi/ESXi*
- The package includes:CX314A network card * 1, high bracket * 1, low bracket * 1
- Built in Intel Ethernet Controller XL710-BM2, the 40g NIC provides sufficient bandwidth for line rate traffic on dual 40Gbps ports; backwards compatible to 10GbE.
- Data Rate Supported Per Port: 40GbE(DAC);10GbE(4x SFP+ Breakout Cable:). Cabling Type: QSFP+ Transceiver, DAC and AOC
- Interface: PCIe 3.0(8.0 GT/s) x 8, compatible with x8/x16 slot.
- Support OS: Windows 11/10/Visa, Linux, Windows Server 2008/ 2012, Windows8, Windows7, Windows Server 2003, VMware ESX
- Comes with low-profile and full-height brackets. We provide 30-day return or refund and 3-year warranty service for any quality issue and lifetime technology support.
- 2-port QSFP+ ConnectX-3 VPI InfiniBand and Ethernet Adapter Card (OPN:MCX354A-FCBT), support QSFP+ optical modules and corresponding DAC/AOC cables, PCIE 3.0 X8 interface, Low & Regular-profile bracket
- InfiniBand date rate: FDR/QDR/DDR/SDR; Ethernet date rate: 40/10/1Gb/s
- InfiniBand RDMA, Remote boot over InfiniBand; RDMA over Converged Ethernet, Remote boot over Ethernet; Remote boot over iSCSI
- Hardware-Based I/O Virtualization: Single Root IOV, Address translation and protection, Dedicated adapter resources,Multiple queues per virtual machine, VMware NetQueue support
- CPU Offloads:TCP/UDP/IP stateless offload, LSO, Receive Side Scaling (RSS) up to 32 queues, Line rate packet filtering
- 【Controller】:40GbE PCI-E NIC with Original Intel XL710-BM1 controller, which supports single-root I/O virtualization and improves server stability.
- 【Data Rate】:Single QSFP+ Port(1GbE/10GbE/40GbE) let you connect to network cable for meeting the demands of data center environments.PCIe v3.0 (8.0GT/s) x8; X8/X16 Lane.
- 【Technical Support】:On-chip QoS and Traffic management; FPP; Load balancing on multiple CPUs; VMDq; PCI-SIG* SR-IOV; Intel Data Directl/O Technology; TCP checksum offloading capabilities; iSCSI,FCoE,NFS; Jumbo Frames;PXE;DPDK;DCB;Auto-MDIX.
- 【Supported Operating Systems】: Windows, Windows Server, Linux*RHEL, SUSE, Ubuntu, FreeBSD, Vmware ESX/ESXi, UEFI, etc.
- 【What you Get】: Vogzone 40GbE PCI-E X8 Network Card XL710-QDA1-40G (compare to Intel XL710-QDA1 ) x1, Low-profile Bracket x1(NOTE: QSFP adapter is not included in the package).
Last update on 2025-07-05 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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