Toshiba Satellite A30 Series - page 23

1.4 2.5-inch Hard Disk Drive 1 Hardware Overview
1.4 2.5-inch Hard Disk Drive
The removable HDD is a random access non-volatile storage device. It has a non-removable 2.5-
inch magnetic disk and mini-Winchester type magnetic heads. The computer supports a 30, 40 or
60GB HDD.
The HDD is shown in Figure 1-2. Specifications are listed in Table 1-2.
Figure 1-2 2.5-inch HDD
Items
Toshiba
MK3021GAS
(30GB)
Toshiba
MK4021GAS
(40GB)
Toshiba
MK6021GAS
(60GB)
Formatted capacity (GB) 27.94 37.26 55.89
Logical Blocks(LBA) 58,605,120 78,125,000 117,187,500
Rotational speed (rpm) 4,200 4,200 4,200
Buffer (MB) 2 2 2
Bytes per sector 512 512 512
Table 1-2 2.5-inch HDD specifications
Satellite A30 Series Maintenance Manual 1-9