Serial ATA Flash Drive

APS18P6Axxxx-5XXX

4

© 2013 Apacer Technology Inc.

Rev. 1.4

1.3

ATA Mode Support

SAFD 18P provides ATA mode support as follows:

Up to PIO mode-4

Up to Multiword DMA mode-2

Up to UDMA mode-4

1.4

Capacity Specification

Capacity specification of SAFD 18P product family is available as shown in Table 1-1. It lists the specific

capacity, the default numbers of logical cylinders and heads, and the number of logical sectors per track for

each product line.

Table 1-1 Capacity specification

Capacity

Total Bytes*

Cylinders

Heads

Sectors

Max LBA**

8 GB

7,012,196,352

13,587

16

63

13,695,696

16 GB

16,013,942,784

16383

16

63

31,277,232

32 GB

32,017,047,552

16,383

16

63

62,533,296

64 GB

64,023,257,088

16383

16

63

125,045,44

128 GB

128,035,676,10

16383

16

63

250,069,60

*Display of total bytes varies from file systems.

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

***Notes: 1 GB = 1,000,000,000 bytes; 1 sector = 512 bytes.

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.

1.5

Performance

Performance of SAFD 18P is shown in Table 1-2.

Table 1-2 Performance specifications

Capacity

Performance

8 GB

16 GB

32 GB

64 GB

128 GB

Sustained Read

(MB/s)

255

260

260

260

245

Sustained Write

(MB/s)

100

205

190

215

165

Note:

Performances vary from flash configurations and host system configurations.

Read/write performance is measured using CrystalDiskMark under Windows XP operating sytem.