The cable connecting to your S300 could easily connect to a PERC H200 or PERC H700.  VD's created on an S-series controller cannot be migrated to an H-series controller, but from the sounds of it, you haven't gotten far enough for it to matter.
  Greetings all. I have now discovered (after ordering) that this controller does not support ESX/vSphere. The docs say it does not support Hyper-V either. My first question is: Can I in fact install Hyper-V on the S300? ESXi will not even see it - will Hyper-V? Is this lack of Hyper-V support merely a formality or will the adapter really not work in this case?    If not, then what would e the easiest upgrade path to a non 'S' class RAID adapter? I do have four SAS hot-swap drives in this R310 and would like to use RAID 5. I was hoping to avoid a replacement of cables or harnesses etc since it looks like the cable assemblt back to the existing S300 is fairly clean.   Any chance I can literally unplug the connector from the S300 onto a replacement adapter, rebuild the array and be done with it?   Thanks all.
Replace/upgrade PERC S300 in an R310?