Datasheet

Serial ATA Flash Drive

APS25AXXxxxx-XTM

1. Product Description

1.1 Introduction

Apacer’s SFD25A-M is a well-balanced solid-state disk (SSD) drive with standard form factor and great

performance. Designed in SATA 6.0 Gbps interface, the SSD is able to deliver exceptional read/write speed,

making it the ideal companion for heavy-loading industrial or server operations.

For data efficiency, the internal controlling unit of the SSD is engineered with DRAM for enhanced random

performance (for high-speed type only). In regard of reliability, the drive comes with various implementations

including powerful hardware ECC engine, power saving modes, wear leveling, flash block management,

S.M.A.R.T., TRIM, and power failure management.

1.2 Capacity Specification

Table 1-1 Capacity specification

Capacity Total Bytes* Cylinders

Heads Sectors Max LBA*

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 64,023,257,088 16,383 16 63 125,045,424

128 GB 128,035,676,160 16,383 16 63 250,069,680

256 GB 256,060,514,304 16383 16 63 500,118,192

*Display of total bytes varies from file systems.

**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.

1.3 Performance

Table 1-2 Performance (standard type)

Capacity

Performance

16 GB 32 GB 64 GB 128 GB 256 GB

Sustained Read

(MB/s)

200 370 350 385 385

Sustained Write

(MB/s)

22 42 80 170 170

Note: Performance varies from flash configurations or host system settings. The result of 256GB is based on estimation.