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SD Global TOP > Information (About SDXC) > Important Product Notice (English)
The next-generation SDXC memory card specification, released in April, 2009, dramatically improves consumers’ digital lifestyles by increasing storage capacity from more than 32GB up to 2TB. File system is “exFAT” to handle large files in high-speed access and efficiently.
Important Product Notice
Click here before using your SDXC Memory Card
The first SDXC memory cards and SDXC host products (digital cameras, video cameras, mobile phones, etc.) have begun to reach the consumer market. As an early adopter of the new SDXC technology, it is important that you understand how to use your new SDXC memory card to its greatest capacity.
Before inserting your SDXC memory card, confirm the host product is SDXC compatible by locating an SDXC logo on the host product or referring to the host product's instruction manual or manufacturer's information.
SDXC Backwards Compatibility Configuration
SDXC memory cards can be used only with SDXC host products.
SDXC host products can use SD, SDHC and SDXC memory cards.
SDHC memory cards can be used with SDHC and SDXC host products.
SDHC host products can use both SD and SDHC memory cards.
Backwards capability is a standard, for example a data format in electronics such as video cameras and computers. A device is backwards compatible if products designed for the new standard can receive, read, view or play older standards and formats.
| SDXC memory card |
SDHC memory card |
SD memory card |
|
| SDXC host products |
YES | YES | YES |
| SDHC host products |
NO | YES | YES |
| SD host products |
NO | NO | YES |
SDXC host products are backwards compatible with earlier SD and SDHC memory cards. SDXC memory cards should not be used in non-compatible host products.
If an SDXC memory card is inserted into a PC or a host product that does not support SDXC memory cards, a message may prompt you to format the card. Do not format the SDXC memory card in a non-compatible host product; it will erase the data on the SDXC memory card and format the card for a different file system that will no longer work with SDXC host products.
1. SDXC Non-Compatible PC
If you accidentally insert your SDXC memory card into a PC that does not support SDXC (using a direct SD slot or USB reader/writer), the following messages may appear:
* When formatted, the card capacity will be reduced to half or less, or the SD host product will not be able to recognize the card, making it no longer SDXC compatible.
2. SDXC Non-Compatible Host Product
If you accidentally insert your SDXC memory card into an SDHC host product that is not compliant, the following messages may appear:
* SDHC host products basically comply with SD Physical Layer Specification V.2.00.
* When formatted, the card capacity will be reduced to half or less, or the SD host product will not be able to recognize the card, making it no longer SDXC compatible.
When you use your SDXC memory card with your PC, please confirm if your PC supports exFAT and please download appropriate software.
Overview: SDXC support on Windows OS
Windows 2000, Me and 98 OS do not support SDXC.
Overview: SDXC support on MacOS
* including SDXC host devices connected to PC using USB cable
If using an SDXC memory card with an PC:
Use the SDXC formatter to format the card if necessary. Do not format it using the PC's generic formatting software.
For the Windows 7 and Window Vista operating system, use an SDXC-compatible USB reader/writer, connect an SDXC-compatible device to the personal computer via USB, or install SDXC driver from Mcrosoft site.
Microsoft Windows 7 and Windows Vista (SP1 and SP2) support exFAT - the file system used by SDXC.
In particular, if you would like to use the card directly in a personal computer's card slot, be sure to check the information provided by the manufacturer of the PC first, and follow the instructions given.
