This article describes the new features and the fixes that are contained in the Windows Vista Secure Digital (SD) rollup package.

The following new features are enabled in this package:

• Support for SD High Capacity (SDHC) cards that are 8 gigabytes (GB) or larger in Windows Vista.
• Support for dual voltage (1.8-volt and 3.3-volt) Secure Digital/MultiMediaCards (SD/MMC) cards in Windows Vista.
• Support for Secure Digital Input Output (SDIO) cards in Windows Vista.

  SDIO cards use an interface that adds functionality for a range of devices, such as GPS devices, Ethernet adapters, Wi-Fi or Bluetooth adapters, modems, scanners, fingerprint readers, bar-code readers, IrDA adapters, FM radio tuners, TV tuners, digital cameras, hard drives, and so on.

Note: Specific hardware is required to take advantage of these new features. For example, the computer must have a supported SD Controller to use SDHC, SDIO SD, or MMC cards.