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SDHC cards have more storage capacity than standard SD cards and are used in electronic devices. SanDisk, Panasonic, and Toshiba developed the first SD card in 1999. SDHC cards use version 2.0 of the SDA specification and can store up to 32GB. An SDHC card reader allows for easy file transfer between devices.
Secure Digital High Capacity (SDHC) cards are usually used as extra storage space in various electronic devices. They have the capacity to store more information than their standard secure digital cousins. An SDHC card reader allows you to use the card in compatible devices with a Universal Serial Bus (USB) port, such as a computer.
SanDisk Corporation, in collaboration with Panasonic and Toshiba Corporation, developed the first Secure Digital (SD) memory card in August 1999. Since then, there have been numerous developments on the original design. SD memory cards keep getting smaller and larger in storage capacity.
SDHC cards use version 2.0 of the latest Secure Digital Association (SDA) specification. Many newer electronic devices such as cameras, MP3 players and mobile devices can take advantage of this faster and more advanced protocol. SDHC compatible digital devices can use these larger memory cards.
Standard SD cards are usually no larger than 2GB. Using the latest technology, SDHC cards start at 4GB and, as of 2009, max out at 32GB. An advantage of the larger size means that more music, photos or higher resolution videos can be stored on them.
The SDHC card reader makes it easy to transfer files from digital devices to your computer and vice versa. Many computers have a USB port for input devices. Card readers have a USB connection and a slot to insert the memory card. Often, these card readers accept additional memory card formats, such as Memory Stick, MultiMedia Card (MMC), or xD.
Like the device where the memory card is used, the SDHC card reader must be compatible with these high capacity cards. Some of the older model card readers are only capable of reading standard SD memory cards. Readers that allow the use of an SDHC card are usually marked as such.
Electrical connections at one end of the SDHC card reader allow data communication to the USB port. This type of connection allows the player to function much like a USB flash drive. Files can be transferred to and from various devices with SD and USB port.
Mobile devices often use these smaller types of SD cards for data storage. The increased demands of mobile technology are helping to drive the need for larger capacity memory cards for these devices as well. An SDHC card reader will accept miniSD and microSD cards with the use of an SD card adapter.
