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DB35.3 Series Serial ATA Product Manual, Rev. D
*One Gbyte equals one billion bytes when referring to hard drive capa city. Accessible capacity may vary depending on operating environment
and formatting.
2.2.1 LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.
See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-
bit addressing support of drives with capacities over 137 Gbytes.
2.3 Default logical geo m etry LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.
Model Formatted
capacity* Guaranteed
sectors
Bytes per sector
ST3750640SCE 750 Gbytes 1,465,149,168 512
ST3750840SCE 750 Gbytes 1,465,149,168 512
ST3500830SCE 500 Gbytes 976,773,168 512
ST3400820SCE 400 Gbytes 781,422,768 512
ST3320820SCE 320 Gbytes 625,142,448 512
ST3300820SCE 300 Gbytes 586,072,368 512
ST3250820SCE 250 Gbytes 488,397,168 512
Cylinders Read/write heads Sectors per track
16,383 16 63