Seagate ST9500530NS, ST9160511NS manual Formatted capacity, Default logical geometry, LBA mode

3.2Formatted capacity

	Formatted	Guaranteed
Model	capacity*	sectors	Bytes per sector
ST9500530NS	500 Gbytes	976,773,168	512
ST9160511NS	160 Gbytes	312,581,808

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.

3.2.1LBA 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 5.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48- bit addressing support of drives with capacities over 137 Gbytes.

3.3Default logical geometry

Cylinders	Read/write heads	Sectors per track
16,383	16	63

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.

3.4Recording and interface technology

	500GB	160GB
Interface	Serial ATA (SATA)
Recording method	Perpendicular
Recording density, KBPI (kbits/inch max)	1410
Track density, KTPI (ktracks/inch avg)	200
Areal density (Gbits/inch2 avg)	283
Spindle speed (RPM) (± 0.2%)	7200
Internal data transfer rate (Mbits/sec max)	1136
Sustained data transfer rate (Mbytes/sec max)	95
I/O data-transfer rate (Mbytes/sec max)	300 (Ultra DMA mode 5)

8 Constellation Serial ATA Product Manual, Rev. D