SDHC (Secure Digital - High Capacity Digital Card)

An extension of the SD standard, SDHC, allows standard compliant capacities in excess of 2 GB. SDHC cards are often formatted with the FAT32 file system, which supports partition sizes greater than 4 GB.It uses the same form factor as SD, but the SD 2.0 standard in SDHC uses a different memory addressing method (sector addressing vs byte addressing), thus theoretically reaching a maximum capacity of up to 2048 GB. However the SD Card association have artificially defined the maximum limit of SDHC capacity to 32 GB. SDHC cards only work in SDHC compatible devices, but standard SD cards work in both SD and SDHC devices. The SDHC trademark is licensed to ensure compatibility.

Compatibility

* SDHC Host Products can use both SD and SDHC Memory Cards.
* SD Host Products can use only SD Memory Card 2GB or less.

SD Speed Class: Logo & Class Types

The Class logos must appear near the card's logo on all SDHC Memory Cards (above 2GB).
SD Speed Class logo is optional for SD Memory Cards (2GB and less).

SD Speed Class - The following speed classes have been established:

The SDA has specified operating conditions for SDHC Memory Cards that guarantee the minimum speed according to the card's speed class. Class logos are used to identify cards that comply with these specifications.

The Class logos must appear near the card's logo on all SDHC Memory Cards (above 2GB).
SD Speed Class logo is optional for SD Memory Cards (2GB and less)

Class 2 Card: A speed of 2 MB/s or higher is guaranteed at the best fragmented state where no memory unit is occupied.	Class 4 Card: A speed of 4 MB/s or higher is guaranteed at the best fragmented state where no memory unit is occupied.	Class 6 Card: A speed of 6 MB/s or higher is guaranteed at the best fragmented state where no memory unit is occupied.

If the host product requires or recommends Class 4 data transfer speed or higher-

The host product can achieve the best performance with these cards.

Inov8 will not be liable for loss of data