MCX75310AAS-NEAT Connect to 100GbE Switch

Infrastructure & Networking Adapters and Cables Ethernet Adapter Cards
1

Dear all,

We would like like to connect a ConnectX-7 card (MCX75310AAS-NEAT) to a 100Gb Ethernet switch. According to the “NVIDIA ConnectX-7 Adapter Cards User Manual” (https://docs.nvidia.com/nvidia-connectx-7-adapter-cards-user-manual.pdf) that should be possible as the data rate is supported:

Screenshot 2026-03-11 at 07.54.08
Screenshot 2026-03-11 at 07.54.081354×1054 216 KB

As the card uses an OSFP connector, I would either need a split cable or an adapter to connect to a QSPF28. The “supported cables/pluggable for the ConnectX-7 adapter” ( Validated and Supported Cables and Switches - NVIDIA Docs ) table doesn’t provide to my best knowledge any solution for that.

Could you please guide me to either an adapter and/or a split cable that is supported and resolves the issue.

3

We are also looking for the same use case: connecting the MCX75310AAS-NEAT ConnectX-7 to a 100G switch using an OSFP-to-4xQSFP28 Breakout DAC. From the specifications, this setup should work. But we would need comments from the Nvidia team as well to confirm it, as 4xQSFP28 breakout cables are not mentioned in the Supported Cables explicitly.