Seagate ST1000DM003 Barracuda 7200.10 PATA Product Manual - Page 26

2.2 Formatted capacity Model ST3750840A ST3750640A ST3500830A ST3500630A ST3400820A ST3400620A ST3320820A ST3320620A ST3300820A ST3300620A ST3250820A ST3250620A ST3200820A ST3160815A ST3160215A ST3120815A ST3120215A ST380815A ST380215A ST340815A ST340215A Formatted capacity* 750 Gbytes 750 Gbytes 500 Gbytes 500 Gbytes 400 Gbytes 400 Gbytes 320 Gbytes 320 Gbytes 300 Gbytes 300 Gbytes 250 Gbytes 250 Gbytes 200 Gbytes 160 Gbytes 160 Gbytes 120 Gbytes 120 Gbytes 80 Gbytes 80 Gbytes 40 Gbytes 40 Gbytes Guaranteed sectors 1,465,149,168 1,465,149,168 976,773,168 976,773,168 781,422,768 781,422,768 625,142,448 625,142,448 586,072,368 586,072,368 488,397,168 488,397,168 390,721,968 312,581,808 312,581,808 234,441,648 234,441,648 156,301,488 156,301,488 78,165,360 78,165,360 Bytes per sector 512 512 512 512 512 512 512 512 512 512 512 512 512 512 512 512 512 512 512 512 512 *One Gbyte equals one billion bytes when referring to hard drive capacity. 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 4.1.2, "Identify Device command" (words 60-61 and 100-103) for additional information about 48bit addressing support of drives with capacities over 137 Gbytes. 2.3 Default logical geometry Cylinders 16,383 Read/write heads 16 Sectors per track 63 20 Barracuda 7200.10 PATA Product Manual, Rev. F