NVIDIA Mellanox MCX341A-XCAN ConnectX-3 EN 10GbE Single-Port SFP+ OCP Mezzanine NIC (Lot of 4): This is a lot of 4 refurbished single-port 10 Gigabit Ethernet network interface cards built on the Mellanox ConnectX-3 EN ASIC in the Open Compute Project (OCP) Mezzanine 2.0 form factor. The card connects to the host via PCIe 3.0 x8 and presents a single SFP+ 10GbE port. This is NOT a standard PCIe slot adapter and NOT a multi-port card; it is an OCP mezzanine card intended for OCP-compliant server motherboards. Each unit is sold as Refurbished, professionally tested by T.E.S IT-SOLUTIONS technicians.
Engineering Context
The MCX341A-XCAN uses the Mellanox ConnectX-3 EN controller, a single-chip 10GbE NIC with hardware offload for TCP/UDP checksum, TSO, LRO, and stateless overlay processing. The OCP Mezzanine 2.0 form factor is a low-profile board that mounts directly to OCP-compliant server motherboards rather than occupying a PCIe slot. The card is rated at 10 Gb/s line rate over a single SFP+ port. The host interface is PCIe Gen3 x8, providing approximately 63 Gbps of theoretical bandwidth. RDMA over Converged Ethernet (RoCE v1) is supported on the ConnectX-3 family.
Deployment & Use Cases
OCP-compliant hyperscale server racks requiring single-port 10GbE uplink. Software-defined storage nodes (Ceph, GlusterFS) using SFP+ DAC cables for cluster interconnect. Top-of-Rack 10GbE leaf connectivity for OCP server pods. Web tier and application servers consolidating 1GbE to 10GbE. Refresh deployments where existing OCP motherboards need a working 10GbE NIC.
Technical Specifications
- OEM: Mellanox / NVIDIA Networking
- Part Number: MCX341A-XCAN
- Controller: Mellanox ConnectX-3 EN
- Form Factor: OCP Mezzanine 2.0
- Number of Ports: 1
- Connector: SFP+
- Line Rate: 10 GbE
- Host Interface: PCIe 3.0 x8
- Protocol: Ethernet
- RDMA: RoCE v1 supported
- Quantity: Lot of 4
- Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with OCP Mezzanine 2.0-compliant server motherboards. Supports SFP+ DAC, AOC, and SR/LR optical transceivers (transceivers not included). Compatible with Mellanox MLNX_OFED and WinOF drivers. Will NOT install in standard PCIe expansion slots — this is an OCP mezzanine card, not a PCIe adapter. Does NOT support 40GbE or InfiniBand operation; the MCX341A-XCAN is a 10GbE-only Ethernet NIC. Bracket-less form factor; does not include a low-profile or full-height bracket. Verify your OCP server motherboard supports the OCP Mezzanine 2.0 connector and PCIe 3.0 x8 routing before deployment.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS verifies link training, port detect, and PCIe enumeration on every refurbished NIC. We provide expert consultation on OCP server adapter compatibility, global shipping, and comprehensive warranty. Browse our refurbished adapter catalog. Standard handling time is 1–3 business days.