There is a 39320A-R (R for RAID), which does support RAID, which is probably where the confusion comes from. The 4e/DC has two internal and two external connectors. You do not need a RAID key for an add-in PERC - only for the ROMB (RAID On MotherBoard) systems (4e/Si, 4e/Di). So, why not use the onboard PERC?
Hi, Newbie here, but I have been reading posts for a while, quite a helpful community. I have a  Poweredge 1850 that I am playing with. I have recently gotten(for free) an ASC 39320A\DELL PCI-X SCSI Adapter which I was able to successfully install and I can see the HDDs connected, all is running well, file transfer rates are high.  I am running Windows 2008-R2 Standard,( 64-bit), latest updates, on the internal PERC (2x 300GB), RAID 1. The adapter card is seen as a simple dual channel scsi adapter (non-raid), and is reported as such by OpenManage, as well. HDDs are 300GB Seagate 10K.7 Cheetah U320. (4 of them) Adapter details: ASC 39320A\DELL, OFP874 ID: OFP874-12604-728-2P1J  RevA01 Another label that I do not know what it is: SB0A70603NP  Please somebody clarify, is this a RAID capable adapter or not ? I have seen a lot of confusing posts on the Web, many list these cards as RAID capable. I was not able to find any RAID related menus in the card firmware, Ctrl-A gave me only SCSI options. Is there any firmware I can use to upgrade the card to RAID capabilities ? Are there any updated drivers for it, W2008-R2 64 bit or firmware ? The adapter is working flawlessly as it is(simple SCSI), it is just not raid, do I give up or is there any hope? I need redundancy for the extra storage. What other alternatives are available(besides getting a newer server...) ? Thank you in advance for your help.
ASC 39320A\DELL PCI-X SCSI Adapter