Sonnet's New SATA Pro 6GB ExpressCard/34 is Compatible with the Echo Thunderbolt Adapters

Yes, I said adapter's as in plural. Sonnet now has an Echo Pro Thunderbolt Adapter that is suppose to be twice the speed. Speaking of twice the speed, Sonnet has a new ExpressCard/34 out going by the official name of Tempo SATA Pro 6GB ExpressCard/34. It's not even listed on their website yet, but I know it exist because I have one. I was having slow speed issues with my original SATA Pro ExpressCard/34 and the standard Echo Thunderbolt adapter on my iMac. Sonnet then let me know about their new card, and after receiving it I can report that I'm getting write and read speeds very close to 200 MB/s on a 2 TB software RAID0 setup. I'm using 2 each 1 TB SATA II drives (3GB/s) so I imagine if I had 2 SATA III drives in my enclosure I would be getting closer to the limit of 250 MB/s imposed by the first generation Sonnet Echo Thunderbolt adapter. I may upgrade to the new Echo Pro if I can be relativity assured I will get close to 500 MB/s speeds.