Markesss, Using both controllers wouldn't be supported, as well when you install the H710 the embedded controller is disabled.  
We have an R620 with an H710 minicard connected to a 4 Disk backplane which is populated with 4 SAS drives. Is it possible to use the integrated S110 to connect additional disks with the H710 enabled?  I'd be connecting external disks by running a cable from the S110 connector to an SFF 8087 to 8088 bulkhead adapter that fits in a PCIE slot opening (without plugging into the PCIE slot itself). Thanks
R620 can the H710 and S110 be used at the same time?