Dell 1T7NW Mellanox ConnectX-3 CX354A Dual-Port QSFP+ VPI Network Adapter (40/56GbE + QDR/FDR InfiniBand)
The Dell 1T7NW is a Mellanox ConnectX-3 CX354A dual-port VPI (Virtual Protocol Interconnect) adapter card, providing two QSFP+ ports that can run either 40/56 Gigabit Ethernet or 40Gb/s QDR / 56Gb/s FDR InfiniBand. Built on a PCI Express 3.0 x8 host interface, it is designed for high-throughput server-to-network and server-to-storage connectivity in data center and HPC environments. The card supports RDMA, RoCE, and SR-IOV for low-latency, CPU-offloaded data transfer.
Key specifications
Manufacturer part numberDell 1T7NW (OEM: Mellanox MCX354A-FCBT)Product lineMellanox ConnectX-3 CX354A VPI AdapterHost interfacePCI Express 3.0 x8Port count / type2 x QSFP+ portsSupported speeds40/56 Gigabit Ethernet, or 40Gb/s QDR / 56Gb/s FDR InfiniBand (dual-personality VPI)Protocol offloadRDMA, RoCE, SR-IOV, Data Center Bridging (DCB)BracketFull-height or Low-profile (configuration dependent)BrandDell / Mellanox (NVIDIA)
Features & protocols
- ✓ Dual-personality VPI: switch between Ethernet and InfiniBand modes
- ✓ RDMA over Converged Ethernet (RoCE)
- ✓ Single Root I/O Virtualization (SR-IOV)
- ✓ Data Center Bridging (DCB) support
- ✓ PCIe 3.0 x8 host interface
What's included
- ✓ 1x Dell 1T7NW / Mellanox ConnectX-3 CX354A network adapter card
- ✓ Bracket — full-height or low-profile (configuration dependent; confirm before purchasing)
No QSFPs, cables, driver media, or manuals are included
