NVIDIA Mellanox ConnectX-6 Dx Dual-Port 100GbE QSFP56 PCIe 4.0 x16 Network Adapter — MCX623106TC-CDAT

The NVIDIA Mellanox MCX623106TC-CDAT is the ConnectX-6 Dx dual-port 100GbE QSFP56 network adapter with PCIe 4.0 x16 host interface in a standard PCIe form factor. Delivering 2x 100Gb/s with RoCE v2 and advanced security features, it provides high-bandwidth, low-latency network connectivity for AI/ML, cloud, and enterprise data center server deployments requiring dual-port 100GbE with RDMA capability.

Key Features

• 2x 100GbE QSFP56 ports — dual-port 100Gb/s network connectivity
• PCIe 4.0 x16 host interface
• Standard PCIe form factor — broad server compatibility
• RoCE v2 for RDMA over Ethernet workloads
• Advanced security — AES-256 encryption, TLS 1.3 offload
• NVIDIA ASAP² — accelerated switching and packet processing

Product Specifications

• Part Number: MCX623106TC-CDAT
• Manufacturer: NVIDIA (Mellanox)
• OEM Status: Retail
• Model: ConnectX-6 Dx
• Ports: 2x 100GbE QSFP56
• Host Interface: PCIe 4.0 x16
• Form Factor: Standard PCIe (full-height)
• RDMA: RoCE v2

Interface Specifications

• Host Interface: PCIe 4.0 x16
• Network Ports: 2x QSFP56 (100GbE)
• Form Factor: Standard PCIe (full-height / low-profile bracket included)
• Bandwidth: Up to 200Gb/s aggregate

Port Specifications

• Ports: 2x 100GbE QSFP56
• Protocol: Ethernet (100GbE)
• RDMA: RoCE v2
• Security: AES-256, TLS 1.3 offload
• ASAP²: Supported

Use Cases

• Dual-port 100GbE server network connectivity for AI/ML and cloud workloads
• Enterprise data center 100GbE server networking with RDMA
• Storage networking with NVMe-oF over RoCE v2
• Secure networking with hardware-accelerated encryption offload

Compatibility

• PCIe 4.0 x16 slots (backward compatible with PCIe 3.0)
• QSFP56 100GbE optical transceivers and DAC cables
• Windows Server, Linux, and VMware ESXi with NVIDIA MLNX_OFED driver

Frequently Asked Questions

What is the difference between MCX623106TC-CDAT and MCX623436AN-CDAB?

Both are ConnectX-6 Dx dual-port 100GbE QSFP56 adapters. The MCX623106TC-CDAT is in standard PCIe form factor for standard servers, while the MCX623436AN-CDAB is in OCP 3.0 form factor for OCP server platforms.

What is ConnectX-6 Dx?

ConnectX-6 Dx is NVIDIA Mellanox's 100GbE/200GbE network adapter generation featuring hardware-accelerated security (AES-256, TLS 1.3), RDMA (RoCE v2), and ASAP² for accelerated packet processing — designed for cloud, AI/ML, and enterprise data center deployments.

The NVIDIA Mellanox MCX623106TC-CDAT ConnectX-6 Dx delivers dual-port 100GbE QSFP56 connectivity over PCIe 4.0 x16 — a high-performance network adapter for AI/ML, cloud, and enterprise data center servers requiring dual-port 100GbE with RoCE v2 RDMA and hardware security offload.