NVIDIA Mellanox ConnectX-6 Dx MCX623405AC-VDAN OCP 2.0
ConnectX-6 Dx EN, 1-port 200GbE, OCP 2.0, Secure Boot + Crypto
Host Interface
PCIe 4.0 x16
Port Count
1-port
Port Speed & Connector Type
200Gb Ethernet, QSFP56
Network Protocol / RDMA
Ethernet, RoCE v2
Secure Boot
Supported (hardware root-of-trust firmware authentication)
Product Description
The NVIDIA Mellanox ConnectX-6 Dx EN adapter (MCX623405AC-VDAN) is the security-hardened OCP 2.0 mezzanine SKU in the ConnectX-6 Dx 200GbE family, combining the OCP 2.0 form factor with a hardware root-of-trust Secure Boot and inline hardware Crypto offload for IPsec/TLS. Built on the ConnectX-6 Dx (MT28928) ASIC and connected via PCIe 4.0 x16, it provides a single 200Gb QSFP56 Ethernet port along with RDMA over Converged Ethernet (RoCE v2), ASAP^2 hardware-accelerated virtual switching, and SR-IOV-based I/O virtualization. The OCP 2.0 mezzanine format lets it install directly into OCP-compliant hyperscale server chassis without a PCIe bracket, while Secure Boot and Crypto offload address the firmware-integrity and encrypted-traffic requirements of security-conscious cloud operators. It is best suited to hyperscale and multi-tenant cloud deployments that need both the compact OCP mezzanine footprint and hardware-enforced firmware trust plus wire-speed encryption for tenant network traffic.