If the drive is connected to your Mac, you can use the Apple System Profiler to determine the model number and serial number. Note: The Drive Detect tool and SeaTools are not compatible with LaCie drives. You can also use SeaTools to display each number. Use the DriveDetect.exe method to find both numbers. If your drive is connected to your computer: Seagate has created a very simple tool that will tell you the serial number and the model number of any and all Seagate, Samsung and Maxtor-brand drives connected in or to your computer. Your product serial number is a unique identifier that allows us to look up information about your product and its warranty. Instructions to find a serial number (S/N) on the Seagate, Samsung Maxtor and LaCie drives.
