I have T43p 2668-H8G as well as T60 1951-A47. T60 uses only SATA HDD drives in its ultra bay. I'm running hitachi 100 Gig HTS541010G9SA00 serial ATA drive monted in the T60 ultrabay with my T43p. No problem so far. The T60 ultrabay has an extra plastic 'pin' on its outer connector side. Besides that...