I was fortunate to pick up a second-hand Sonnet Tempo SATA X4i on eBay at a very good price.I have hooked up 2 x 250Gb drives in a striped RAID.Two drives working like one, being good for performance but not good for data security (if one drive fails the data on both is lost), so I make sure I do regular backups. Xbench (bench marking software) scored my RAID on the SATA card 94.73 compared with the normal IDE drive (PATA) at 50.57.Unfortunately, one cannot boot from this Sonnet card. The comments about power consumption from Ronnie and John are interesting.When my power supply died I put a 480W standard PC ATX model in.Connecting it up was a bit of a game but it was rewarding to make it work.Notes were posted on this forum in January 2010. Have fun! Regards, Alan On 12/06/2011 11:07, Bruce Ryan Nakamura wrote: > Hello: > > What do I need to install a SATA drive in a G4 MDD dual 1.25 Mhz Mac? > > Thank you, > > Scot > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4 >