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ConnectX‑7 MCX75310AAS‑HEAT 400G NDR Smart NIC – Inline Encryption & PCIe Gen5
Product Details:
| Brand Name: | Mellanox |
| Model Number: | MCX75310AAS-HEAT(900-9X766-003N-ST0) |
| Document: | Connectx-7 infiniband.pdf |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1pcs |
|---|---|
| Price: | Negotiate |
| Packaging Details: | outer box |
| Delivery Time: | Based on inventory |
| Payment Terms: | T/T |
| Supply Ability: | Supply by project/batch |
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Detail Information |
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| Model NO.: | MCX75310AAS-HEAT(900-9X766-003N-ST0) | Ports: | Single-Port |
|---|---|---|---|
| Technology: | Infiniband | Interface Type: | Osfp56 |
| Specification: | 16.7cm X 6.9cm | Origin: | India / Israel / China |
| Transmission Rate: | 200gbe | Host Interface: | Gen3 X16 |
| Highlight: | Nvidia ConnectX-7 400G Smart NIC,ConnectX-7 PCIe Gen5 network card,NDR Smart NIC with inline encryption |
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Product Description
NVIDIA ConnectX-7 MCX75310AAS-HEAT 400G NDR Smart NIC
High-performance 400Gb/s RDMA adapter designed for AI, scientific computing, and hyperscale cloud data centers.
Product Overview
The NVIDIA ConnectX-7 MCX75310AAS-HEAT is a single-port, 400Gb/s RDMA network adapter that supports both InfiniBand and Ethernet protocols. It is designed to address the full spectrum of networking needs — from traditional enterprise IT infrastructure to the most demanding AI, scientific computing, and hyperscale cloud data center environments.
Leveraging PCIe Gen5 host connectivity with x16 lanes, the MCX75310AAS-HEAT delivers extreme throughput and ultra-low latency. It integrates NVIDIA's in-network computing engines, including SHARP collective offloads, GPUDirect RDMA, and GPUDirect Storage, to accelerate data movement and reduce CPU overhead. Built-in hardware security engines provide in-line encryption for IPsec, MACsec, and TLS, ensuring end-to-end data protection without performance penalty.
Key Features & Technology
Networking & Performance
- Up to 400 Gb/s total bandwidth
- InfiniBand: NDR 400Gb/s, HDR 200Gb/s, EDR 100Gb/s
- Ethernet: 400/200/100/50/25/10 Gb/s
- PCIe Gen5 host interface (x16 lanes)
- Single-port QSFP112 connector
- RDMA & RoCEv2 accelerations
- NVIDIA GPUDirect® RDMA and Storage
- In-network computing with SHARP™
- Adaptive routing & enhanced congestion control
- 16 million I/O channels
Security, Timing & Management
- In-line encryption: IPsec, MACsec, TLS (AES-GCM 128/256-bit)
- Platform security: Secure boot, flash encryption, device attestation (SPDM 1.1)
- Advanced PTP: IEEE 1588v2 Class C, 12ns accuracy
- SyncE (G.8262.1 eEEC), PTM, PPS, time-triggered scheduling
- ASAP² for SDN & VNF acceleration
- Overlay networks: VXLAN, GENEVE, NVGRE
- Connection tracking (L4 firewall), flow mirroring, QoS
- NC-SI, MCTP, PLDM (Monitor/Control, Firmware Update, Redfish, FRU)
- SR-IOV, VirtIO acceleration
Typical Deployments
- AI & machine learning clusters – GPU-accelerated training and inference
- High-performance computing (HPC) – research, simulation, and scientific workloads
- Hyperscale cloud data centers – scalable, multi-tenant infrastructure
- Enterprise data centers – virtualization, SDN, and storage acceleration
- Storage systems – NVMe-over-Fabrics, GPUDirect Storage, distributed file systems
- Telecommunications & edge – 5G core, timing-sensitive applications, NFV
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | MCX75310AAS-HEAT |
| Supported network protocols | InfiniBand, Ethernet |
| Maximum total bandwidth | 400 Gb/s |
| InfiniBand speeds | NDR 400Gb/s, HDR 200Gb/s, EDR 100Gb/s |
| Ethernet speeds | 400/200/100/50/25/10 Gb/s |
| Number of network ports | 1 port (single-port QSFP112) |
| Host interface | PCIe Gen5 (x16 lanes) |
| Form factor | PCIe HHHL (half-height, half-length) |
| Interface technologies | NRZ (10G, 25G), PAM4 (50G, 100G) |
| I/O channels | 16 million |
| MTU / message size | 256 – 4,096 bytes MTU, 2 GB messages |
| Multi-Host support | Up to 4 hosts |
| In-network computing | SHARP collective offloads, rendezvous protocol offload, burst buffer offload |
| Security features | In-line IPsec/MACsec/TLS (AES-GCM 128/256), secure boot, flash encryption, SPDM 1.1 |
| Timing & synchronization | PTP IEEE 1588v2 Class C (12ns accuracy), SyncE G.8262.1 eEEC, PTM, PPS |
| Management | NC-SI, MCTP over SMBus/PCIe, PLDM (Monitor/Control, Firmware Update, Redfish, FRU), SPDM, SPI, JTAG |
| Remote boot | InfiniBand, iSCSI, UEFI, PXE |
| Operating systems | Linux (RHEL, Ubuntu), Windows, VMware ESXi, Kubernetes |
Key Advantages
- Unmatched performance – 400 Gb/s bandwidth with sub-microsecond latency
- Protocol flexibility – single adapter for InfiniBand and Ethernet (VPI)
- AI-optimized – GPUDirect RDMA and Storage, SHARP collective offloads
- Future-ready – PCIe Gen5 host interface for maximum data throughput
- Security built-in – in-line encryption with zero performance impact
- Precision timing – IEEE 1588v2 Class C for 5G and timing-sensitive applications
- Comprehensive management – PLDM, Redfish, and NC-SI for modern data center orchestration
- Single-port efficiency – ideal for dedicated high-bandwidth workloads
Frequently Asked Questions
What is the maximum bandwidth of the MCX75310AAS-HEAT?
It delivers up to 400 Gb/s total bandwidth, supporting both InfiniBand (NDR 400Gb/s, HDR 200Gb/s, EDR 100Gb/s) and Ethernet (400/200/100/50/25/10 Gb/s) speeds.
What host interface does this adapter use?
PCIe Gen5 with x16 lanes, offering high host bandwidth for data-intensive workloads.
Does it support GPUDirect?
Yes, the MCX75310AAS-HEAT supports NVIDIA GPUDirect RDMA and GPUDirect Storage for low-latency GPU-to-GPU and GPU-to-storage communication.
What form factor is this adapter?
It comes in a PCIe HHHL (half-height, half-length) form factor with a single QSFP112 port.
What security features are included?
In-line hardware encryption for IPsec, MACsec, and TLS (AES-GCM 128/256-bit), plus secure boot, flash encryption, and device attestation (SPDM 1.1).
Is this adapter compatible with Ethernet switches?
Yes, it supports standard Ethernet protocols and can be deployed in both InfiniBand and Ethernet fabrics.
How does this differ from the dual-port MCX755106AS-HEAT?
The MCX75310AAS-HEAT is a single-port adapter, ideal for workloads that require dedicated 400G bandwidth per server without the need for dual-port redundancy or aggregation.
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