Nice to see more eSATA support! I have an ASUS A8N32 SLI Deluxe with 1 eSATA 300 port built-in. Connected to it I have a Western Digital SE16 500MB SATA2 hard drive housed in a Nexstar SATA2/eSATA enclosure. It's ridiculously fast compared to my internal IDE drive. Unfortunately it's close to full and looks like I'll need to purchase another external drive. Does anyone know if this Seagate has any fans built in? My Nexstar does not and gets very hot.
Normally, boards that have an eSATA port on the I/O panel have, an SIL 3132 SATA controller as well. This means you COULD use this motherbaord with a port multiplier, and connect 5 external SATA HDDs to this port, and potentially get 3GB/s speeds from the external array.
For eSATA, I would NEVER use a PCI card, but instead, I would buy a expansion slot conversion 'kit', which basicly plugs directly into a motherboard SATA port, and gives you eSATA from the back of your PC. In other words, full speed external disks
Of course, as per eSATA specifications, cable length is limited to 3 meters, but not that it matters much.
Personally, I would get this kit from Seagate MAYBE if they put in a PCIE card instead, but PCIE 1x is bandwidth limited to what ? 2.5GB ? Not that it matters, because a single drive will never hit 2.5GB/s (312.5MB/s) anyhow . . .