NVIDIA Mellanox MCX653106A-HDAT ConnectX-6 VPI, Dual-Port HDR 200Gb/s / 200GbE QSFP56, PCIe 3.0/4.0 x16: This is a dual-port VPI (Virtual Protocol Interconnect) network adapter card based on the ConnectX-6 ASIC, supporting 200Gb/s HDR InfiniBand or 200GbE Ethernet selectable per port. This is a host-side NIC for installation in a server PCIe slot. This is NOT a switch, transceiver, or Socket Direct card. This is a refurbished unit, fully tested by T.E.S IT-SOLUTIONS.
Engineering Context
The MCX653106A-HDAT carries OEM part number 900-9X6AF-0058-ST1. Each QSFP56 port supports 200Gb/s using 4x50Gb/s PAM4 lanes (HDR InfiniBand) or 200GbE Ethernet, with selectable HDR100/EDR/100GbE/40GbE lower modes. The PCIe 4.0 x16 host interface delivers approximately 31.5GB/s of usable bandwidth; PCIe 3.0 x16 is supported for backward compatibility but caps aggregate throughput. The ConnectX-6 ASIC provides RDMA, GPUDirect, NVMe-oF, and SHARP collective offload. This SKU does NOT include the inline IPsec/TLS crypto engine.
Deployment & Use Cases
HDR InfiniBand fabrics for AI training, large-scale HPC simulation (CFD, molecular dynamics, weather modeling), and GPU-to-GPU RDMA. Hybrid IB+Ethernet deployments where one port runs InfiniBand to a Quantum switch and the other runs 200GbE to a Spectrum switch. NVMe-oF storage targets requiring 200GbE front-end. SHARP-accelerated MPI all-reduce on Quantum HDR fabrics. Mid-range AI clusters where Socket Direct is not required.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCX653106A-HDAT (900-9X6AF-0058-ST1)
Controller: ConnectX-6 (VPI)
Ports: 2x QSFP56
Data Rate: 200Gb/s HDR InfiniBand or 200GbE Ethernet per port
Host Interface: PCIe 3.0/4.0 x16
Form Factor: HHHL with tall (full-height) bracket
Protocol Modes: InfiniBand (HDR/HDR100/EDR/FDR), Ethernet (200/100/50/40/25/10GbE)
Inline Crypto: Not supported (no IPsec/TLS offload)
Offloads: RDMA, RoCEv2, NVMe-oF, GPUDirect RDMA, SHARP, SR-IOV
Compliance: RoHS
Condition: Refurbished — tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Compatible with NVIDIA Quantum HDR InfiniBand switches (e.g., QM8700, QM8790) and NVIDIA Spectrum 200GbE Ethernet switches. Per-port mode (IB vs Ethernet) is set via firmware/driver. Requires PCIe 4.0 x16 slot for full bandwidth on both ports simultaneously — PCIe 3.0 x16 will throttle aggregate throughput below 400Gb/s line rate. Not Socket Direct — do not confuse with MCX654xxx-series SKUs. Not crypto-capable; if IPsec/TLS offload is required, this SKU is not suitable. Use NVIDIA-approved 200G QSFP56 transceivers, DACs, or AOCs.
Why TES
T.E.S IT-SOLUTIONS tests every ConnectX-6 VPI adapter on both ports at HDR line rate, validates PCIe link width, and verifies firmware integrity. Visit tes-itsolutions.com for compatibility consultation. Handling time: 1-3 business days.
Frequently Asked Questions
What data rate does the MCX653106A-HDAT have?
The MCX653106A-HDAT data rate is 200Gb/s HDR InfiniBand or 200GbE Ethernet per port, as listed in the specifications for MCX653106A-HDAT.
What is the MCX653106A-HDAT NOT compatible with?
This is NOT a switch, transceiver, or Socket Direct card. Confirm fitment against your platform before ordering MCX653106A-HDAT.
What condition is the MCX653106A-HDAT supplied in, and who sells it?
The MCX653106A-HDAT 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/nvidia-mcx653106a-hdat-vpi-dual-port-hdr-200gb-s-ib-eth-card-pcie-3-0-4-0-x16-1.