NVIDIA Mellanox ConnectX-6 MCX623405AN-CDAN OCP2.0
1-Port 100GbE OCP 2.0 Adapter, Standard Variant
Host Interface
PCIe 4.0 x16
Port Count
1-port
Port Speed & Connector Type
100GbE, QSFP56
Network Protocol / RDMA
Ethernet only (ConnectX-6 Dx EN); RDMA over Converged Ethernet (RoCE v2)
Secure Boot
Not equipped (standard variant — see MCX623405AC-CDAN for Secure Boot option)
Product Description
The NVIDIA Mellanox ConnectX-6 Dx MCX623405AN-CDAN is a 1-port 100GbE OCP 2.0 mezzanine adapter that pairs the ConnectX-6 Dx (MT28928A0-XCCF-CE) controller with a PCIe 4.0 x16 host interface for high-bandwidth, low-latency Ethernet connectivity. It is the standard variant of the ConnectX-6 Dx OCP 2.0 family, delivering RDMA over Converged Ethernet (RoCEv2), SR-IOV virtualization and ASAP²-class virtual switch offload without the Secure Boot / Crypto engine of the -AC variant, simplifying qualification and shipment where export-controlled cryptography is not required. Its compact OCP 2.0 form factor removes cabling and connector overhead in dense rack-scale server designs, while hardware congestion control and QoS mechanisms keep multi-tenant traffic predictable at 100Gb/s line rate. Suited to hyperscale and enterprise operators who need ConnectX-6 Dx performance and offload capabilities but do not require hardware-enforced Secure Boot or inline encryption, the MCX623405AN-CDAN is ordered under NVIDIA SKU 900-9X671-0016-SN0.