Hi,

Some docs advertise that H330 and H350 controllers only works with R740 and HBA355e only works with R740xd. 

About HBA355e I see that doc where R740 appears as compatible.

https://www.dell.com/support/manuals/es-es/hba-355/hba355_ug/poweredge-systems-supported-by-dell-hba355e-adapter?guid=guid-da6fdae4-218d-4c86-a0f2-56639cb2b4ff&lang=en-us

Could someone confirm if all of these controllers are compatible with R740 and also R740xd?

Regards,