Part # U558P , is a S300 card. There is definitely some confusion in the google searches, but it is a S300. I am not sure why some sites also label it as PERC6. If it were a PERC6 it would have a embedded DIMM and attached to a battery backup.
Hello,  So I am finding mixed responses. It appears that ESXi doesn't support the T310 when a PERC S3000 is installed, yet the dell site lists it as compatible.   So........ Does it work or does it not?  If it does can someone point me to the installer?  Thank you,
T310 and ESXi on a PERC S3000