Newer Technology Guardian Maximum 2TB RAID-1 Mirror for Plug and Play Reliability
The Newer Technology Guardian MAXimus (“GMAX”) is a enclosure containing two drives which appears to the Mac as a single external drive. Internally, it runs as a RAID-1 mirror, but those are details the Mac doesn’t see— it’s plug and play just as with any single drive.
I’ve just published my review of the GMAX, and there is a lot to like. Performance on both the Mac Pro and MacBook Pro for eSATA/Firewire800/USB is covered in the review.