2B1.3 2.5-inch HDD 1 Hardware Overview
1.3 2.5-inch HDD The computer contains an extremely low-profile, lightweight and high-performance HDD.
The HDD incorporates 9.5 mm height magnetic disk and mini-Winchester type magnetic
heads. The HDD interface conforms to Serial ATA. Storage capacities supported are 250,
320, 500 & 640GB.
The HDD is shown in Figure 1-5 and some of its specifications are listed in Table 1-1.
Figure 1-5 SATA HDD
Table 1-1 HDD Specifications
Item Specifications
Capacity (GB) 250 GB 320 GB 500 GB
Rotational Speed (RPM) 5400 rpm 5400 rpm 5400 rpm
Height 9.5 mm 9.5 mm 9.5 mm
User Data Sectors 488,397,168 625,142,448 976,773,168
Bytes / Sector 512 512 512
Item Specifications
Capacity (GB) 640 GB - -
Rotational Speed (RPM) 5400 rpm - -
Height 9.5 mm - -
User Data Sectors 1,250,263,728 - -
Bytes / Sector 512 - -
Satellite/Satellite Pro/L630/L635 Maintenance Manual 17