| Q1:
What’s the difference between A1 and A2 standards?
|
A: Please find the table below for detailed information.
Application
Performance
Class |
Pictograph |
Minimum
Random Read |
Minimum
Random Write |
Minimum
Sustained
Sequential Write |
| Class 1 (A1)* |
 |
1500 IOPS |
500 IOPS |
10MBytes/sec |
| Class 2 (A2)** |
 |
4000 IOPS |
2000 IOPS |
10MBytes/sec |
* The detailed preconditions and test are defined in SD 5.1 Part 1 Physical specification.
** The detailed preconditions and test are defined in SD 6.0 Part 1 Physical specification. |
| Q2:
Which ADATA memory cards are best for use with my dashcam?
|
| A: We suggest ADATA’s Premier or Premier Pro series microSDHC or SDHC cards.
For more information, please visit to
https://www.adata.com/en/Memory-Card-Readers/sd/ |
| Q3:
How do I confirm using a UHS-I supported card reader that it is operating at the speed it should have?
|
| A: This can be tested using the HDBEHCH program. The read and write speed differences for a card reader with or without UHS-I support are significant (see below). So be sure to confirm whether the card reader supports UHS-I.
|
| Q4:
How do I confirm that the IOPS comply with the specifications marked on the product?
|
| A: Click the icon to Open Test Configuration File
1. Select GA Memory perf test Random Read First.icf
2. Confirm the file name from the list
3. Open existing file
Disk Targets : Choose test product
Click the green flag icon
Save Results prompt window: Choose Save
When the test is finished, open the recently saved file results.csv (By Office)
RRead(4K) - Random Read (4K)
IOps - Random Read, IOPs Test value
MBps- Random Read, MB/s Test value
Rwrite (4K) - Random Write (4K)
IOps / - Random Write, IOPs Test value
MBps- Random Write, MB/s Test value
|
| Q5:
Why does higher IOPS mean better support for Smartphones and tablets?
|
| A: Currently the general public uses Smartphones and Tablets with many small software applications and game-based programs. Higher IOPS means the device can more quickly read and write the many small files used by these programs, resulting in more speed and better natural support. |
| Q6:
What does IOPS refer to？
|
| A: IOPS stands for Inputs/Outputs Per Second. It is a common benchmark used to measure performance of storage devices. |
| Q7:
What capacity of card is considered to be enough for a digital camera taken on a trip?
|
| A: This depends on your need. Generally speaking, a high pixel photo is 2-3MB. If you want to take 300 photos, at least 1GB capacity is required. For longer tours, higher capacity cards will be needed. |
| Q8:
How do I use the Flash card on a laptop?
|
A: There are three ways:
1. Use the card with laptop built-in card reader.
2. Use an external card reader.
3. Use a data transfer line. |
| Q9:
Can ADATA Flash card be used on any digital devices (DSC/PDA/card reader)?
|
| A: Users are recommended to check the compatibility (http://www.adata.com/en/support/mcs/) before purchasing.
|
| Q10:
What are the differences between FAT, FAT32, NTFS, and exFAT?
|
| A: FAT, FAT32, NTFS, and exFAT are the most popular currently. Each of them has its own pros and cons. Users are recommended to choose the format type corresponding to their needs. However, the latest exFAT is not initially included in Win XP. Win XP users can add support for exFAT by installing an update from Microsoft at http://support.microsoft.com/kb/955704/. However, please note that the update kit is only for versions later than Win XP SP2 or SP3.
|
| Q11:
How do I convert FAT/FAT32 to NTFS?
|
A: To convert a FAT partition to NTFS, follow these steps:
1. Click Start, click Run, type “cmd”, and then click OK.
2. At the command prompt, type CONVERT [driveletter]: /FS:NTFS.
3. Convert.exe attempts to convert the partition to NTFS.
4. Link: http://support.microsoft.com/kb/307881/en-us |
| Q12:
Why can't a larger than 4GB file be saved to the Flash card?
|
| A: FAT32 has a limitation for the maximum file size it can handle, which is 4GB. The issue can be solved by the latest exFAT file system, which is initially included in Windows Vista and is in later Windows versions. Win XP users can add support for exFAT by installing an update from Microsoft at http://support.microsoft.com/kb/955704/. However, please note that the update kit is only for versions later than Win XP SP2 or SP3. |
| Q13:
Why can the 4GB/ 8GB SDHC be used on DSC (Digital Still Camera) but not on the laptop?
|
| A: Most earlier manufactured laptops can’t support SDHC cards. However, using an external card reader can solve the issue easily.
|
| Q14:
Where can I find information about the reading and writing speed of memory cards?
|
| A: Please refer to the detailed description that comes with each memory card when purchased.
|
| Q15:
What if my Flash card is suddenly not recognized?
|
| A: Various reasons may cause Flash card to be unrecognized. When the Flash card is confirmed not work on more than one device, please contact ADATA Customer Service to solve the problem.
. |
| Q16:
Can the Flash card be used on devices rather than DSC or DVD player?
|
| A: Sure. Flash cards can be used on various digital devices to save data.
|
| Q17:
I cannot delete files or format my memory card.
|
A: There are two possibilities:
1. The SD card or micro SD card’s lock is on.
2. Sometimes the memory card becomes locked due to the accumulation of bad sectors. |
