Mellanox ConnectX-6 Single-Port 200GbE HDR100 QSFP56 PCIe 4.0 x16 Adapter

Mellanox ConnectX-6 Single-Port 200GbE HDR100 QSFP56 PCIe 4.0 x16 Adapter

Brand: Mellanox | Category: Network Adapters & NICs

SKU: MCX653105A-EFAT | Part #: MCX653105A-EFAT | MPN: MCX653105A-EFAT

Contact for Pricing — Request a Quote

Request a Quote Contact Us

About the Mellanox ConnectX-6 Single-Port 200GbE HDR100 QSFP56 PCIe 4.0 x16 Adapter

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.

Ideal for

  • Large-scale distributed AI model training with GPU clusters requiring sub-microsecond inter-node latency
  • High-performance computing simulations and molecular dynamics requiring sustained 200 Gbps bandwidth between compute nodes
  • Real-time financial risk modeling and algorithmic trading infrastructure with strict latency requirements
  • Data warehouse acceleration and ETL pipeline orchestration in analytics platforms
  • Kubernetes and container orchestration in hyperscale environments with intensive north-south traffic patterns
  • Scientific research computing including climate modeling, genomics analysis, and quantum simulations

Technical specifications

ManufacturerMellanox
ModelConnectX-6 Single-Port 200GbE HDR100
Part NumberMCX653105A-EFAT
Port Configuration1 x QSFP56
Port Speed200 Gbps per port
Supported ProtocolInfiniBand HDR100 / Ethernet HDR100
PCIe GenerationPCIe 4.0
PCIe Lanesx16
Form FactorHalf-length, half-height (HHHL)
Memory4 GB on-board
RDMA SupportRoCE v2, InfiniBand
GPU IntegrationGPUDirect RDMA v2
Packet Buffering48 MB
Power Consumption≤25W typical
Operating Temperature0–55°C
PCI Express Connectorx16 physical
CoolingPassive (fanless)
Supported OpticsQSFP56 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.

Technical Specifications

BrandMellanox
CategoryNetwork Adapters & NICs
SKUMCX653105A-EFAT
Part NumberMCX653105A-EFAT
ConditionNew
ModelConnectX-6 Single-Port 200GbE HDR100
Port Configuration1 x QSFP56
Port Speed200 Gbps per port
Supported ProtocolInfiniBand HDR100 / Ethernet HDR100
PCIe GenerationPCIe 4.0
PCIe Lanesx16
Form FactorHalf-length, half-height (HHHL)
Memory4 GB on-board
RDMA SupportRoCE v2, InfiniBand
GPU IntegrationGPUDirect RDMA v2
Packet Buffering48 MB
Power Consumption≤25W typical
Operating Temperature0–55°C
PCI Express Connectorx16 physical
CoolingPassive (fanless)
Supported OpticsQSFP56 LR4, DR4, SR4 transceivers (400m, 100m, 100m range respectively)

Frequently Asked Questions about Mellanox ConnectX-6 Single-Port 200GbE HDR100 QSFP56 PCIe 4.0 x16 Adapter

What does the Mellanox ConnectX-6 Single-Port 200GbE HDR100 QSFP56 PCIe 4.0 x16 Adapter do?

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.

What are the headline specs of the Mellanox ConnectX-6 Single-Port 200GbE HDR100 QSFP56 PCIe 4.0 x16 Adapter?

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.

Is the Mellanox ConnectX-6 Single-Port 200GbE HDR100 QSFP56 PCIe 4.0 x16 Adapter compatible with my infrastructure?

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.