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Hong Kong Starsurge Group Co., Limited
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NVIDIA MCX653105A-HDAT ConnectX-6 200Gb/s VPI Adapter Card

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NVIDIA MCX653105A-HDAT ConnectX-6 200Gb/s VPI Adapter Card

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Max Speed Up to 200 Gb/s
Ethernet Connector QSFP56
Packaging Details outer box
Type wired
Brand Name Mellanox
Condition new and original
model MCX653105A-HDAT
Delivery Time Based on inventory
Model Number MCX653105A-HDAT
Supply Ability Supply by project/batch
Application Server
Minimum Order Quantity 1pcs
Price Negotiate
products Status Stock
Payment Terms T/T
Detailed Product Description
NVIDIA MCX653105A-HDAT ConnectX-6 200Gb/s VPI Adapter Card
NVIDIA ConnectX-6 VPI 200Gb/s HDR VPI Dual Protocol
MCX653105A-HDAT
ConnectX-6 VPI Adapter Card | 200Gb/s HDR InfiniBand & 200GbE
Single-port QSFP56, PCIe 4.0 x16. Hardware offloads for RDMA, NVMe-oF, and in-network computing. Sub-600ns latency, up to 215 million messages per second.
Product Overview
The NVIDIA Mellanox MCX653105A-HDAT is a high-performance ConnectX-6 VPI (Virtual Protocol Interconnect) adapter card, delivering up to 200Gb/s bandwidth for both InfiniBand HDR and 200 Gigabit Ethernet networks. Designed for the most demanding data center workloads—including AI training, high-performance computing, cloud analytics, and NVMe-oF storage—this single-port QSFP56 card combines ultra-low latency (<600ns) with a staggering 215 million messages per second.
Leveraging PCIe Gen 4.0 x16 host interface, the MCX653105A-HDAT offloads critical communication tasks from the CPU, including RDMA, encryption, and network virtualization, providing industry-leading throughput and efficiency for modern compute and storage platforms.
Key Features
  • ✓ 200Gb/s Speeds - Single QSFP56 port supporting HDR InfiniBand and 200GbE
  • ✓ PCIe 4.0 x16 Host Interface - Backward compatible with PCIe 3.0
  • ✓ Hardware Encryption - Block-level XTS-AES 256/512-bit, FIPS capable
  • ✓ RDMA & GPUDirect - PeerDirect™ communication acceleration for GPU servers
  • ✓ NVMe-oF Offloads - Target and initiator offloads for high-performance storage
  • ✓ Virtualization - SR-IOV support up to 1,000 virtual functions
  • ✓ Multi-speed Support - Compatible with HDR100, EDR, FDR, 100/50/40/25/10GbE
Technology Highlights
  • ConnectX-6 VPI ASIC - Industry's first 200Gb/s adapter with in-network computing
  • Sub-600ns Latency - Ultra-low latency for latency-sensitive HPC applications
  • Tag Matching & Rendezvous Offloads - Enhances MPI performance
  • Adaptive Routing on Reliable Transport - Congestion avoidance
  • Flexible Pipeline - Programmable data path for new network flows
  • ODP (On-Demand Paging) - Efficient memory management for large datasets
Compatibility Matrix
CategoryCompatible Products / Environment
InfiniBand SwitchesNVIDIA Quantum-2 (Q3400, Q3200), Quantum HDR series
Ethernet SwitchesNVIDIA Spectrum-3, Spectrum-4 (200GbE/400GbE ports)
Cables / TransceiversQSFP56 DAC, AOC, SR4, DR4 modules (200Gb/s)
Operating SystemsRHEL/CentOS, Ubuntu, Windows Server, FreeBSD, VMware ESX
ServersHPE ProLiant Gen10/Gen10 Plus, Dell PowerEdge, Supermicro
GPU SystemsNVIDIA DGX-1, DGX-2, DGX H100 (via appropriate cables)
Technical Specifications
ParameterMCX653105A-HDAT Specification
Model NumberMCX653105A-HDAT (retail), MCX653105A-HDAT-SP (single pack)
Product TypeConnectX-6 VPI Adapter Card
Port ConfigurationSingle-port QSFP56
Data Rate200Gb/s (InfiniBand HDR) / 200GbE
Host InterfacePCIe 4.0 x16 (compatible with PCIe 3.0, 2.0, 1.1)
Message RateUp to 215 million messages per second
Latency<600 nanoseconds
EncryptionXTS-AES 256/512-bit block-level, FIPS 140-2 capable
Form FactorPCIe low-profile stand-up (tall bracket installed, short bracket included)
Dimensions (PCB)167.65mm x 68.90mm
Power ConsumptionApproximately 12W typical
Operating Temperature0°C to 55°C
Standards ComplianceRoHS, ODCC, IEEE 802.3, IBTA 1.3
Remote BootInfiniBand, Ethernet, iSCSI, UEFI, PXE
Supported Speeds (InfiniBand)HDR (200Gb/s), HDR100 (100Gb/s), EDR, FDR, QDR, DDR, SDR
Specifications from NVIDIA ConnectX-6 VPI datasheets. Verify with your NVIDIA representative before ordering.
Buyer Checklist
  • ✓ PCIe Slot: Requires x16 physical slot (electrical x16/x8/x4/x1 supported)
  • ✓ Bracket Type: Tall bracket pre-installed; short bracket included
  • ✓ OS Support: Confirm driver availability (Linux OFED, WinOF-2)
  • ✓ Cable Type: Use passive DAC or AOC with QSFP56 (no finned-top modules)
  • ✓ Use Case: Single-port model—ensure one port meets your bandwidth needs
Ordering Information
Part NumberDescription
MCX653105A-HDATConnectX-6 VPI, single-port QSFP56, 200Gb/s HDR/200GbE, PCIe 4.0 x16, tall bracket
MCX653105A-HDAT-SPSingle-pack retail version
MCX653106A-HDATDual-port variant for comparison (2x QSFP56)
Related Products
MCX653106A-HDAT (dual-port) QSFP56 200Gb/s DAC Cables NVIDIA Quantum HDR InfiniBand Switches ConnectX-7 NDR 400Gb/s Adapters
Frequently Asked Questions
Q: What is the difference between MCX653105A-HDAT and MCX653106A-HDAT?
A: The MCX653105A-HDAT is a single-port adapter (1x QSFP56), while the MCX653106A-HDAT is a dual-port adapter (2x QSFP56). Both support PCIe 4.0 x16 and 200Gb/s speeds. Choose single-port for cost-sensitive edge nodes or dual-port for high-availability and link aggregation.
Q: Is this card compatible with PCIe 3.0 slots?
A: Yes. The MCX653105A-HDAT supports both PCIe Gen 3.0 and Gen 4.0. When installed in a PCIe 3.0 slot, it will operate at Gen 3.0 speeds (16 GT/s)
Q: Can I use this adapter with standard QSFP28 transceivers?
A: Yes. The card uses QSFP56 connectors which are backward compatible with QSFP28 modules. However, for 200Gb/s speeds, you need QSFP56-rated cables or transceivers
Q: Does this support GPUDirect RDMA?
A: Yes. ConnectX-6 supports NVIDIA PeerDirect™ communication acceleration for direct GPU-to-GPU data transfers, significantly improving AI/ML training performance.
Q: What brackets are included with the card?
A: The card ships with a tall bracket pre-installed and includes a low-profile short bracket in the box for 2U server installations
Important Handling Precautions
Follow standard ESD handling procedures during installation. Ensure adequate airflow in the server chassis. Use only NVIDIA-approved cables and transceivers for 200Gb/s operation. The card supports both InfiniBand and Ethernet protocols—verify your switch compatibility before deployment.
Company Introduction
Hong Kong Starsurge Group Co., Limited is a technology-driven provider of network hardware, IT services, and system integration solutions. Founded in 2008, Starsurge serves customers worldwide with products including network switches, NICs, cables, and related networking equipment. As a certified NVIDIA partner, we provide authentic NVIDIA Mellanox ConnectX series adapters, InfiniBand switches, and DAC cables with global delivery, multilingual support, and responsive technical service. Our customer-first approach ensures reliable quality and tailored solutions for AI data centers, HPC clusters, and enterprise networks.
Product Tags: Nvidia ConnectX-6 network adapter   200Gb/s VPI adapter card   MCX653105A-HDAT network card  
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