Editing SD card (section)

=== 2006–2008: SDHC and SDIO ===
[[File:8 bytes vs. 8Gbytes.jpg|thumb|This microSDHC card holds 8 billion bytes. Beneath it is a section of a [[magnetic-core memory]] (used until the 1970s) that holds eight bytes using 64 cores. The card covers approximately 20 bits ({{frac|2|1|2}} bytes).]]

In September 2006, SanDisk announced the 4&nbsp;GB miniSDHC.<ref name="miniSDHC_announcement">[http://www.sandisk.com/Corporate/PressRoom/PressReleases/PressRelease.aspx?ID=3530 SanDisk Introduces 4&nbsp;GB miniSDHC Flash Card for Mobile Phones] {{Webarchive|url=https://web.archive.org/web/20090115110619/http://www.sandisk.com/Corporate/PressRoom/PressReleases/PressRelease.aspx?ID=3530 |date=2009-01-15 }} SanDisk.com</ref> Like the SD and SDHC, the miniSDHC card has the same form factor as the older miniSD card but the HC card requires HC support built into the host device.{{citation needed|date=September 2023}} Devices that support miniSDHC work with miniSD and miniSDHC, but devices without specific support for miniSDHC work only with the older miniSD card. Since 2008, miniSD cards are no longer produced, due to market domination of the even smaller microSD cards.{{citation needed|date=September 2023}}