> * SII3132-based PCIe X1 SATA card (2 ports)

This chip is slow.

PCIe cards based on the Silicon Image 3124 are much faster, peaking around 1 
GB/sec aggregate throughput.  However, the 3124 is a PCI-X chip and hence is 
used behind an Intel PCI serial-to-parallel bridge for PCIe applications: this 
make for a more expensive card than a 3132.

All PCIe 3124 cards I have seen present all four 3124 ports as external eSATA 
ports.  Perhaps someone else has seen a PCIe 3124 with internal SATA connectors?
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