This would be primarily for expansion storage (speed-critical data will be on motherboard).
I meant 100MB/s while writing to a single HDD (I am assuming that bandwidth is fungible, or will effectively be via software RAID striping of partitions)
I see a few PCI cards which claim "150MB/s", which I assume is total bandwidth, but I don't know if this is accurate.
Per your post,
Rosewill RC-211 Silicon Image 2 port SATA II PCI Express Host Controller Cardhttp://www.newegg.com/Product/Product.a ... 6816132008
certainly looks attractive, if drivers are a sure thing!
Edit: I'll probably also be moving all DVD drives to these to free up motherboard connections, unless someone says this is unwise
edit2: good call on chipset.
"Silicon Image 3124/3124-2 (chip in 4-port SATA-II PCI-X cards) and 3132 (chip in 2-port SATA-II PCI Express cards) (Silicon Image, Inc., formerly CMD Technology, Inc.) — libata's sata_sil24 driver (production quality) supports Silicon Image 3124 (2005-08) and also the follow-on 2-port PCI Express SATA-II successor chip, the Silicon Image 3132. (Per 2004-07-08's libata status report, Silicon Image provided Garzik with docs and sample hardware.)"
Edit3: an interesting PCI card with Silicon Image controller:http://www.newegg.com/Product/Product.a ... 6816132001
claims 1.5Gbps, this sounds like BS to me, though it is super cheap!