I have had a lot of trouble with the Marvell AQtion controllers under Linux. They are supposed to work and are plug and play on modern kernels, but I was never able to resolve a bug where the controller stopped working after a few hours. The only resolution I found was rebooting, which made the controller not very useful.
The Intel 10GbE controllers are more expensive, but much better in my experience.
The Intel 10GbE controllers are more expensive, but much better in my experience.
For anyone looking for an alternative, I use an M.2 to PCI-e slot riser and a regular HHHL PCI-e card. Example product: https://www.amazon.com/ADT-Link-Extension-Support-Channel-Mi...