Is the MCX556A-EDAT card compatible with PCIe Gen 3?

I haven’t so far been able to find definitively whether the MCX556A-EDAT card which has PCIe Gen 4 is backwards-compatible with PCIe Gen 3.

In other words, could I use such a card in a server that only have PCIe Gen 3 slots?

Hello Adam,

Thank you for posting your request on the Mellanox Community.

As per your request → Yes, This adapter is backwards compatible with PCIe Gen3. See the following specifications → https://docs.mellanox.com/display/ConnectX5IB/Specifications#Specifications-MCX556A-EDATSpecifications

Thank you,

~Mellanox Technical Support