SATA-Disk Module 4

APSDMxxxx45Ax-AXX

7

© 2011 Apacer Technology Inc.

Rev. 1.0

4. Capacity Specification

Capacity specification of SDM4 is available as shown in Table 4-1. It lists the specific capacity and the

default numbers of heads, sectors and cylinders for each product line.

Table 4-1: Capacity specifications

Capacity

Total bytes*

Cylinders

Heads

Sectors

Max LBA

2 GB

2,002,452,480

3,880

16

63

3,911,040

4 GB

3,011,420,160

5835

16

63

5,881,680

8 GB

7,012,196,352

15334

16

63

13,695,696

16 GB

16,013,942,784

16,383

16

63

31,277,232

32 GB

32,017,047,552

16,383

16

63

62,533,296

64 GB

63,351,106,560

16,383

16

63

123,732,736

*Display of total bytes varies from file systems, which means not all of the bytes can be used for storage.

4.1 Performance Specification

4.1.1 ATA Mode Support

SDM4 supports the following ATA operating modes:

Supports up to PIO Mode-4

Supports up to Multi-word DMA Mode-2

Supports up to Ultra DMA Mode-5

4.1.2 Performance

Performances of SDM4 are listed below in table 4-2.

Table 4-2: Performance (Standard)

Capacity

Performance

2 GB

4 GB

8 GB

16 GB

32 GB

Sustained read (MB/s)

75

80

80

85

85

Sustained write (MB/s)

26

50

50

80

80

Performance (High-speed)

Capacity

Performance

4 GB

8 GB

16 GB

32 GB

64 GB

Sustained read (MB/s)

150

160

160

160

165

Sustained write (MB/s)

50

100

95

145

150

Note: Results may differ from various flash configurations.