Mellanox MCX653106A-ECAT ConnectX-6 InfiniBand/Ethernet adapter card, 100Gb/s (HDR100, EDR IB and 100GbE), dual-port QSFP56, PCIe3.0/4.0 x16, tall bracket 5 1

MCX653106A-ECAT

I got this mainly for dual-port flexibility and RDMA support. Speed is there, no question, and CPU overhead seems lower than with the older adapter I replaced. My only complaint is power/heat is not trivial in a packed chassis, so airflow matters more than I hoped. Still, for daily heavy traffic in our rack, it’s been dependable.

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