H800 and PERC 6/E are supported external RAID controller supported in T610. You can refer below link for more details on this [URL] 
HI I have reacquired a dell T610. I have upgraded it with a "NEW Dell / LSI MegaRAID External RAID CARD SAS 9285-8e PCI-E 6Gb/s w/ 1GB Cache" raid card. Link for the card:[URL] When ever this card is installed in my Server. The fan goes to max. No matter the temperature of the computer. I wonder if there is a way to make it normal. If not what external sas raid card would not cause the fan to go to max and is compatible with the dell T610. Thanks in advance. 
Dell Poweredge T610 Pci-e compatibility issues with raid cards