Physical Specifications; Physical Dimensions - Western Digital Blue WD20SPZX Technical Reference Manual

2.2

Physical Specifications

Physical
Specifications
1
Capacity
Interface
Actuator Type
Number of Disks
Data Surfaces
Number of Heads
Physical bytes per Sector
Host bytes per Sector
User Sectors per Drive
Servo Type
Recording Method
1
As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte
(GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible
capacity varies depending on operating environment. As used for buffer or cache,
one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface,
megabyte per second (MB/s) = one million bytes per second, and gigabit per
second (Gb/s) = one billion bits per second. Effective maximum SATA 6 Gb/s
transfer rate calculated according to the Serial ATA specification published by the
SATA-IO organization as of the date of this document. Visit www.sata-io.org for
details.
2.2.1

Physical Dimensions

Height
Length
Width
Weight
(typical)
Specifications
WD20SPZX
2,000,398 MB
SATA 6 Gb/s
Rotary Voice Coil
3,907,029,168
LDPC Target
English
Dimension Tolerance
0.28 inches ±0.01 inch
3.94 inches ±0.01 inch
2.75 inches ±0.01 inch
0.20 lb —
WESTERN DIGITAL CONFIDENTIAL
- 16 -
2
4
4
4096
512
Embedded
Metric
Dimension
7.0 mm
100.2 mm
69.85 mm
92 gm
Tolerance
±0.20 mm
±0.25 mm
±0.13 mm