SATA-Disk Module 4

APSDMxxxxX5AN-PXXX

7

© 2013 Apacer Technology Inc.

Rev. 1.5

4. Product Specifications

4.1 Capacity

Capacity specification of SDM4 product family 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

1 GB

1,011,032,064

1,959

16

63

1,974,672

2 GB

2,011,226,112

3,897

16

63

3,928,176

4 GB

4,011,614,208

7,773

16

63

7,835,184

8 GB

8,012,390,400

15,525

16

63

15,649,200

16 GB

16,013,942,784

16,383

16

63

31,277,232

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

**Cylinders, heads or sectors are not applicable for these capacities. Only LBA addressing applies.

LBA count addressed in the table above indicates total user storage capacity and will remain the same throughout the lifespan of the

device. However, the total usable capacity of the SSD is most likely to be less than the total physical capacity because a small portion

of the capacity is reserved for device maintenance usages.

4.2 ATA Modes 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

4.3 Performance

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

Table 4-2: Performance (Typical)

Capacity

Performance

1 GB

2 GB

4 GB

8 GB

16 GB

Sustained read (MB/s)

38

43

43

43

43

Sustained write (MB/s)

12

24

24

41

42

Note: Results may differ from various flash configurations or host system settings.