NVIDIA Mellanox MCX341A-XCCN ConnectX-3 EN 10GbE Single-Port SFP+ OCP Mezzanine Adapter, Lot of 5: This is a single-port 10 Gigabit Ethernet network interface card in OCP (Open Compute Project) Mezzanine 2.0 form factor, based on the Mellanox ConnectX-3 EN ASIC. MPN MCX341A-XCCN. This is NOT a standard PCIe card, NOT a dual-port adapter, NOT InfiniBand-capable, and NOT a 25/40/100GbE adapter. Sold as a Lot of 5, refurbished and tested.
Engineering Context: ConnectX-3 EN delivers 10GbE wire-speed throughput on a single SFP+ port with PCIe Gen3 x8 host signaling carried over the OCP Mezzanine connector. Hardware offloads include stateless TCP/UDP/IP checksum, Large Send Offload, Large Receive Offload, and VLAN tagging. RDMA over Converged Ethernet (RoCE) is supported for low-latency RDMA storage and HPC traffic. The OCP form factor mounts directly to compatible Open Compute servers without consuming a standard PCIe slot, and ships without a PCIe bracket.
Deployment & Use Cases: Open Compute hyperscale data center servers, OCP-compliant cloud infrastructure deployments, OCP rack designs, and 10GbE server uplinks where standard PCIe slots must remain free for accelerators or storage controllers.
Technical Specifications:
MPN: MCX341A-XCCN
Controller: Mellanox ConnectX-3 EN
Ports: 1x SFP+
Speed: 10 Gigabit Ethernet
Host Interface: PCI Express 3.0 x8 (over OCP Mezzanine)
Form Factor: OCP Mezzanine 2.0
Bracket: None (OCP mezzanine, not PCIe)
Protocol Support: 10GbE, RoCE
Stateless Offloads: TCP/UDP/IP checksum, LSO, LRO, VLAN tagging
Virtualization: SR-IOV
Pack Quantity: Lot of 5
Condition: Refurbished, tested
Brand: NVIDIA Mellanox
Compatibility & Constraints: Supported on Linux (in-kernel mlx4_en driver), VMware ESXi, Microsoft Windows Server with vendor drivers. Requires an OCP Mezzanine 2.0 slot — does NOT fit standard PCIe slots. NOT an InfiniBand VPI adapter; it is Ethernet-only (EN). NOT compatible with 25GbE / 40GbE / 100GbE links. Accepts standard SFP+ DAC cables and SR / LR optical modules at 10GbE.
Why TES: T.E.S IT-SOLUTIONS specializes in refurbished NVIDIA Mellanox enterprise networking hardware. Each MCX341A-XCCN card is bench-tested before shipment. Handling time 1–3 business days. Request a quote.
Frequently Asked Questions
What is the MCX341A-XCCN NOT compatible with?
This is NOT a standard PCIe card, NOT a dual-port adapter, NOT InfiniBand-capable, and NOT a 25/40/100GbE adapter. Confirm fitment against your platform before ordering MCX341A-XCCN.
What condition is the MCX341A-XCCN supplied in, and who sells it?
The MCX341A-XCCN is supplied in Refurbished condition by T.E.S IT-SOLUTIONS from EU stock, with 1-3 business day handling and worldwide B2B shipping. See https://www.tes-itsolutions.com/product-page/lot-of-5-mellanox-mcx341a-xccn-single-port-sfp-eth-10gb-s-ocp-card-support.
Are there deployment constraints on the MCX341A-XCCN?
Requires an OCP Mezzanine 2.0 slot — does NOT fit standard PCIe slots. This applies to MCX341A-XCCN specifically.