Pros: I wasn't sure if it would really work over the distance I needed (over 700 feet), but it did.

Cons: Those 3 lights are cryptic. Labels please!

Overall Review: I have not tested max throughput or latency, but it's sure faster than the wireless I was using. I had to run 80 feet of ethernet to bypass 1920's house wiring that was probably goofing it up my first attempted setup.

Pros: The hardware is good

Cons: The software bugs make it unusable. There are many, threads concerning the MSI laptop clipboard error, but no fix to be found.

Pros: VMWare ESXi support PCI-Express x8

Cons: It uses directional SAS cable connectors. 8-disk RAID10 read@141MB/s, write@68MB/s.

Overall Review: I'm re-reviewing this because we finally got the thing working. The problem was the use of the wrong directional SAS to SATA fanout cable. I give SAS cabling technology 0 out of 5 eggs, because it doesn't need to be directional, and even if it did, then the connectors should be male to female like all other modern cables.

Pros: PCIe 8x We'll know more if we get a working replacement.

Cons: It will boot, but it will not find any drives. We have tried multiple motherboards and drives with this thing with no luck. We've jumped through a couple days worth of troubleshooting hoops with Adaptec support, and we just want to be done with it. Also the price is high.

Overall Review: It would be nice to try a replacement to see if this unit is defective or if the model has design flaws that severely limit compatibility.

Pros: I needed a port multiplier, and it was the least expensive one that I could find. It does the job.

Cons: It maxes out at about 135MB/s total throughput. Each of the 2 physical connectors tested up to 85MB/s. This is less than half of the claimed PCIe-x1 supported rate of 2.5Gb/s (312.5MB/s) and barely more than a third of the claimed SATA II 3Gb/s (375MB/s). Every manufacturer lies about the supported transfer rates, so don't let this shock you.

Overall Review: I did not test the RAID capabilities of this card.

Pros: Speed is very good. I'll be using this unit to test if OTHER components are limiting my speed.

Cons: Cost/Space is extremely high

Overall Review: I see other reviewers connecting these to USB enclosures/docks and complaining about the speed. The bottleneck is the USB device. I have never seen a USB device perform faster than 20MB/sec. Furthermore, SATA 1.0 spec maxes out at 150MB/sec where SATA 2.0 maxes out at 300MB/sec. Make sure the devices you connect these fast drives to support and implement SATA 2.0. Most devices claim they do, but don't actually live up to the spec. In summary, you have to independently test the ACTUAL speed of EVERY component in your system to KNOW the speed of any particular link in the chain. Very hard to do.