Question : Problem: PCIe x1 vs x4 Bandwidth (for eSATA II)

I'm looking to attach an eSATA II drive to my system for backup (3Gb/s). Do I need a x1 or x4 PCIe card to get full speeds out of this drive?

Any recommendations on card manufacturer?

Answer : Problem: PCIe x1 vs x4 Bandwidth (for eSATA II)

Almost any SATA card with an eSATA connection will work fine, even PCI cards should be OK, since you rarely get the full rated speed on a 7200 RPM drive.

If using a 10K drive use x1 PCI-e and you should be fine.

 I hope this helps !