OCW has posted a review on the ASrock 939SLI-eSATA2 ULi M1697 SLI board

ASrock releases yet another surprise for all its users - ASrock 939SLI-eSATA2. ASrock 939SLI-eSATA2 is the first board manufactured that supports the ULi M1697 single K8 chipset mainboard that comes with SLI and eSATA2 support. The board comes with 2 PCIex16 slots which can be configured to work in a single PCIe x16 mode or Dual PCIe x8. This allows SLI operation by pairing up two similar GeForce 6600, 6800 or 7800 cards and run it in tandem to improve graphics performance.

ASrock 939SLI-eSATA2 ULi M1697 SLI Board Review