Brand: Mellanox | Category: Network Adapters & NICs
SKU: MCX653105A-EFAT | Part #: MCX653105A-EFAT | MPN: MCX653105A-EFAT
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The Mellanox ConnectX-6 Single-Port 200GbE HDR100 adapter delivers ultra-high-bandwidth connectivity for next-generation data center infrastructure. Built on PCIe 4.0 x16 architecture, this QSFP56-based network interface card provides 200 Gbps single-port performance optimized for low-latency, high-throughput applications requiring sustained data movement at scale.
Engineered for HPC and AI training environments, the ConnectX-6 HDR100 adapter integrates advanced offload engines including RDMA over Converged Ethernet (RoCE v2), GPUDirect RDMA, and hardware-accelerated packet processing. These capabilities reduce CPU overhead while enabling direct GPU-to-GPU communication patterns critical for distributed machine learning and scientific computing workloads.
The adapter supports InfiniBand HDR100 and Ethernet HDR100 modes, providing flexible deployment across homogeneous and hybrid cluster architectures. Native support for adaptive routing, congestion control, and quality-of-service mechanisms ensures deterministic performance in multi-tenant enterprise environments.
| Manufacturer | Mellanox |
| Model | ConnectX-6 Single-Port 200GbE HDR100 |
| Part Number | MCX653105A-EFAT |
| Port Configuration | 1 x QSFP56 |
| Port Speed | 200 Gbps per port |
| Supported Protocol | InfiniBand HDR100 / Ethernet HDR100 |
| PCIe Generation | PCIe 4.0 |
| PCIe Lanes | x16 |
| Form Factor | Half-length, half-height (HHHL) |
| Memory | 4 GB on-board |
| RDMA Support | RoCE v2, InfiniBand |
| GPU Integration | GPUDirect RDMA v2 |
| Packet Buffering | 48 MB |
| Power Consumption | ≤25W typical |
| Operating Temperature | 0–55°C |
| PCI Express Connector | x16 physical |
| Cooling | Passive (fanless) |
| Supported Optics | QSFP56 LR4, DR4, SR4 transceivers (400m, 100m, 100m range respectively) |
Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.
| Brand | Mellanox |
| Category | Network Adapters & NICs |
| SKU | MCX653105A-EFAT |
| Part Number | MCX653105A-EFAT |
| Condition | New |
| Model | ConnectX-6 Single-Port 200GbE HDR100 |
| Port Configuration | 1 x QSFP56 |
| Port Speed | 200 Gbps per port |
| Supported Protocol | InfiniBand HDR100 / Ethernet HDR100 |
| PCIe Generation | PCIe 4.0 |
| PCIe Lanes | x16 |
| Form Factor | Half-length, half-height (HHHL) |
| Memory | 4 GB on-board |
| RDMA Support | RoCE v2, InfiniBand |
| GPU Integration | GPUDirect RDMA v2 |
| Packet Buffering | 48 MB |
| Power Consumption | ≤25W typical |
| Operating Temperature | 0–55°C |
| PCI Express Connector | x16 physical |
| Cooling | Passive (fanless) |
| Supported Optics | QSFP56 LR4, DR4, SR4 transceivers (400m, 100m, 100m range respectively) |
The Mellanox ConnectX-6 Single-Port 200GbE HDR100 QSFP56 PCIe 4.0 x16 Adapter is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Arista environments.
Key specifications for the Mellanox ConnectX-6 Single-Port 200GbE HDR100 QSFP56 PCIe 4.0 x16 Adapter: new condition; manufacturer Mellanox; model ConnectX-6 Single-Port 200GbE HDR100; part number MCX653105A-EFAT; port configuration 1 x QSFP56; port speed 200 Gbps per port; supported protocol InfiniBand HDR100 / Ethernet HDR100. Manufacturer part number MCX653105A-EFAT. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
The Mellanox ConnectX-6 Single-Port 200GbE HDR100 QSFP56 PCIe 4.0 x16 Adapter interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.