My flash card is not seen by my device or shows a card error in the device, but it works OK in another device. Why?

Depending on what the device supports, you may be running into a incompatibility related issue. To confirm, you should refer to your device’s user manual for assistance. Please see below for more details. Card Type - With various card types available, it's important to make sure you are using one that is supported by your device. For example, some card types include: SDHC, SDXC, and SDUC. Although some devices may support all three card types, older devices may only support one or two. Please check your devices user manual to confirm which card types it supports. Card Capacity - Along with card types, there is also card capacity. With card capacities ranging from less than 2GB up to 128TB and above, it is important to confirm which capacities are supported by the device in question. File System - The File System can also cause support related symptoms. With the various card capacities comes different File Systems, such as FAT, NTFS, and exFAT to name a few. Please check your devices user manual to confirm which File Systems are supported. If your card is utilizing an unsupported File System, you may be able to resolve by reformatting the card with a compatible File System.

Can I boot from this Kingston flash card, set it as a fixed disk or run an OS from it?

No. We do not support ourflash cards as bootable devices, fixed disks or something you can run an OSfrom.

My flash card that is above 32GB shows up as not formatted in my device after formatting it in Windows. Why?

Many devices that use flash cards may only recognize a FAT32 file system. However, the Windows format utility will automatically default the file system to exFAT for any removable storage device above 32GB. Additionally, it will not give the option to format with FAT32 file system. Therefore, due to the exFAT file system, your device may not see the file system and therefore identify the card as not formatted. The best practice is to reformat the card in the device you primarily use the card with.

Why is the available storage capacity of my product slightly less than the advertised capacity?

This is common for flash storage, whether internal SSD or external USB storage. It is due in part to a variance in how flash memory vs spinning platter hard drive manufacturers calculate megabyte. Hard drive manufacturers calculate a megabyte (or 1,000x1,000 bytes) as 1,000KBs, whereas the binary calculation for flash-based storage is 1,024KBs. Example: For a 1TB flash-based storage device, Windows will calculate it as having a capacity of 931.32GB. (1,000,000,000,000÷1,024÷1,024÷1,024=931.32GB). Furthermore, Kingston reserves some of the listed capacity for formatting and other functions, such as firmware and/or controller-specific information, and thus some of the listed capacity is not available for data storage. <div class="clearfix"></div>

CompactFlash Ultimate 266x - Support

Ultimate 266x (CF-U2)

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This is common for flash storage, whether internal SSD or external USB storage. It is due in part to a variance in how flash memory vs spinning platter hard drive manufacturers calculate megabyte. Hard drive manufacturers calculate a megabyte (or 1,000x1,000 bytes) as 1,000KBs, whereas the binary calculation for flash-based storage is 1,024KBs.

Example: For a 1TB flash-based storage device, Windows will calculate it as having a capacity of 931.32GB. (1,000,000,000,000÷1,024÷1,024÷1,024=931.32GB).

Furthermore, Kingston reserves some of the listed capacity for formatting and other functions, such as firmware and/or controller-specific information, and thus some of the listed capacity is not available for data storage.

FAQ: KDT-010611-GEN-06

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