About SDHC Card Readers
A PCMCIA (Personal Computer Memory Card International Association) with a SDHC (Secure Digital High Capacity) card reader allows data input to be read from the storage medium in portable devices. A PC-card that has SDHC (flash memory) uses a particular type of EEPROM, or Electronically Erasable Programmable Read Only Memory chip that maintains the stored information.
Uses: A memory card with SDHC support has several storage capacities to store files and information.
Characteristics: SDHC memory cards look the same as regular SD cards, but there are some differences between the two cards. For instance, the cards that support SDHC have increased memory to support users having lots of pictures and videos.
Benefits: Previous SD cards had only a capacity of 2GB, but with SDHC, the capacity range is from 4GB to 32GB (utilize FAT32 formatting). Therefore, SDHC can store more data. Another benefit is that the SDHC clock speed is much higher (as high as 50 MHz per second) than SD (which has up to 25 MHz per second). With SDHC, it allows a much faster data transfer rate. Also worth noting is that SDHC card readers can read SD cards, but not the other way around.
Note: PC cards supporting SDHC vary in cost because they are priced according to their capacity and speed.
Advice: Not all notebooks have a PCMCIA slot, so users should make sure theirs does and that it is compatible with a SDHC card.