We actually have 2 different models, the PD2520 is RAID 0 2 X 2.5" hdd's or SSD & the PD2510 which is hardware RAID 1 2 X 2.5" hdd's or SSD.
Both products work with the latest Mac Pro machines.
The PD2500 was RAID 0 or RAID 1 but did NOT work in Nehalem Mac Pro machines.
The RAID 0 product is fixed, but is portable with FW800 & USB2.0 plugs in the back for use offsite.
The RAID 1 product is also fixed, no FW or USB.
Product page here:
http://www.raidon-usa.com/stardom/pro_drive_feature.html
Anything else, drop us a line.
Nanofrog, I was with CalDigit as the Director of Business Development, I left CalDigit in Nov of 09'
Jon