The SSD Review The Worlds Dedicated SSD Education and Review Resource | 
RAID 0 MODE
Here the performance will be faster, as the data is striped over two drives and can be accessed much faster.
ATTO
Here we are witnessing speeds that are actually scaling perfectly, coming in at nearly double the speed with 235 MB/s.
HDTACH
HD Tach measures the drives at 172 MB/s, which is very good for two spinners!
CRYSTAL DISK MARK
imo they should ditch the firewires and replace em with a usb3 interface.
Yea, really! And even a dedicated and completely useless and unnecessary FireWire 400 port??? You can also use a FW800-to-FW400 cable, but why would you use either kind!?? And where are the USB 3.0 and Thunderbolt enclosures? OWC is getting LAME.
Do you have any experience with the other OWC enclosures, for instance the OWC Mercury Elite Pro Dual? Was wondering what is the performance difference between their Mercury Elite Pro Dual & Mercury Elite Pro Raid.
Thx