I have another SiI 3124 based card in another system, it's a Norco 4618 four port eSATA. It lives in an Apple Xserve and connects to a four disk rack mount enclosure and works well. That card has vanished from newegg and other vendors, and now you pay...
I got this card to go in a 2002 vintage Dell Poweredge 1400SC tower server to run a pair of 2TB disks. I put in the card and Win Update found a driver to install. The disks worked as two separate disks, so I went to Disk Management and formatted 'em...
Not a one I can see. It does say Silicon Image 3124 RAID or something like that in Device Manager, but it works how I want, i.e. two disks with different letters show up as drives on the system