NVIDIA Mellanox ConnectX-6 Dx MCX623106PN-CDAT

The NVIDIA Mellanox ConnectX-6 Dx MCX623106PN-CDAT is a dual-port 100GbE network adapter built on the ConnectX-6 Dx controller with a PCIe 4.0 x16 host interface, adding PPS (Pulse-Per-Second) In/Out support for precision time synchronization. Unlike the GN timing SKU, this card does not include Enhanced-SyncE or PTP Grandmaster capability, focusing instead on straightforward PPS-based time correlation between the adapter and external equipment. It combines this timing feature with the standard ConnectX-6 Dx networking stack: RoCE v2 RDMA for low-latency data movement, ASAP² hardware offload for Open vSwitch, and SR-IOV for efficient virtualization, all without hardware Secure Boot or crypto offload. Dual QSFP56 100GbE ports provide bandwidth and redundancy for demanding fabrics. The MCX623106PN-CDAT suits deployments that need basic precision-timing correlation — such as distributed measurement, logging, or event-timestamping systems — layered on top of dependable dual-port 100GbE connectivity, without the cost of full GNSS Grandmaster timing or hardware security features.