NVIDIA Mellanox MCX342A-XCAN ConnectX-3 EN 10GbE Dual-Port SFP+ NIC: This is a dual-port 10 Gigabit Ethernet Network Interface Card (NIC) built on the Mellanox ConnectX-3 ASIC, with SFP+ cage connectors and a PCIe 3.0 x8 host interface. This is an Ethernet-only adapter (EN) — it does NOT support InfiniBand operation. The unit is supplied without a PCIe bracket (bracket-less). This is a brand-new, factory-sealed unit.
Engineering Context
The MCX342A-XCAN delivers full 10GbE line rate on both ports with low CPU overhead through hardware offloads. The ConnectX-3 ASIC supports stateless TCP/UDP/IP offloads, RDMA over Converged Ethernet (RoCE), SR-IOV with up to 127 virtual functions per port, and hardware-accelerated VXLAN and NVGRE overlay encapsulation. PCIe 3.0 x8 provides up to 64 Gb/s of raw bandwidth — well above the 20 Gb/s aggregate required by the dual 10GbE ports. The bracket-less form is intended for chassis where the integrator supplies the appropriate bracket.
Deployment & Use Cases
10GbE access-layer connectivity for virtualization hosts (VMware ESXi, KVM, Hyper-V), Ceph and iSCSI storage targets, NVMe-oF over RoCE deployments, MySQL and PostgreSQL replication links, video streaming origin servers, and small-to-medium Hadoop or Spark clusters. Suitable for branch office or compact data center deployments.
Technical Specifications
- OEM: NVIDIA Mellanox
- Part Number (MPN): MCX342A-XCAN
- ASIC: ConnectX-3
- Adapter Family: ConnectX-3 EN (Ethernet only)
- Ports: 2 × SFP+
- Data Rate: 10GbE per port
- Host Interface: PCIe 3.0 x8
- Bracket: Not supplied (bracket-less)
- Offloads: RoCE, TCP/UDP/IP stateless, SR-IOV (up to 127 VFs/port), VXLAN, NVGRE
- RoHS: R6 compliant
- Condition: Brand New — Factory Sealed
Compatibility & Constraints
Requires a free PCIe 3.0 x8 (or wider) slot. SFP+ ports accept industry-standard 10GBASE-SR, 10GBASE-LR transceivers and SFP+ direct-attach copper (DAC) cables. Compatible with Mellanox SX1012/SX1024 and any IEEE-compliant 10GbE switch. Not compatible with InfiniBand fabrics. Linux (MLNX_OFED or inbox), Windows Server, VMware ESXi, and FreeBSD all supported. The unit ships without a PCI bracket — verify your chassis bracket requirements before installation.
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T.E.S IT-SOLUTIONS supplies NEW, factory-sealed Mellanox networking hardware with verified part-number authenticity. Visit tes-itsolutions.com for our full 10GbE adapter inventory, expert fabric consultation, global shipping with 1–3 business day handling, and warranty support.