Pros: Works on MAC OS X 10.5.5 unibody MacBook Pro with latest driver from Rosewill's website 66.49MB/sec Write 69.28MB/sec Read

Cons: Firewire 800 was comparable on same drive at: 54.75 MB/sec Write 68.42MB/sec Read

Overall Review: remember these tests are benchmarks not real word data eSATA should technically be faster

Pros: NOTHING

Cons: 1 stick out of the 4 I ordered was DOA. It would blue screen at random times. At first I thought it was the memory controller but nope tried it in a different system and same problem. And in the time it took me to troubleshoot I have gone over the return time.