ATA CF
AP-CFxxxxH4NR-XXXXXXQ
5
© 2013 Apacer Technology Inc. Rev. 1.6
4. Product Specifications
4.1 Capacity
Capacity specification of the ATA CF series 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
128 MB 128,057,344 977 8 32 250,112
256 MB 256,901,120 980 16 32 501,760
512 MB 512,483,328 993 16 63 1,000,944
1GB 1,024,966,656 1986 16 63 2,001,888
2GB 2,048,385,024 3969 16 63 4,000,752
4GB 4,096,253,952 7937 16 63 8,000,496
8GB 8,001,552,384 15504 16 63 15,628,032
16GB 16,001,040,384 16383* 16 63 31,252,032
Notes:
Display of total bytes varies from operating 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.
4.2 Performance
Performances of the CF cards are listed in Table 4-2
Table 4-2: Performance specifications
Capacity
Performance
128 MB 256 MB 512 MB 1 GB 2 GB 4 GB 8 GB 16 GB
Sustained
read (MB/s)
17 29 19 21 20 21 21 20
Sustained
write (MB/s)
4 8 7 12 11 11 13 15
Notes: performance may vary depending on flash configurations or host system settings.
