Secure Digital SD卡

（重定向自MicroSD）

Back side of an Lexar UHS-II microSDHC card, showing the additional row of UHS-II connections

Camera using the SDIO interface to connect to some HP iPAQ devices

SanDisk microSDXC card with UHS-I and UHS Speed Class 1 markings

Secure Digital (SD) is a non-volatile memory card format developed by the SD Card Association (SDA) for use in portable devices.

The standard was introduced in August 1999 by joint efforts between SanDisk, Panasonic (Matsushita Electric) and Toshiba as an improvement over MultiMediaCards (MMC), and has become the industry standard. The three companies formed SD-3C, LLC, a company that licenses and enforces intellectual property rights associated with SD memory cards and SD host and ancillary products.

单词	MicroSD
释义	MicroSD 原声例句 SciShow 合集 Even your fancy new microSD card can’t compete with that kind of storage density. 即便是您新奇的 microSD 卡也无法与这种存储密度相媲美。英语百科 Secure Digital SD卡（重定向自MicroSD） Secure Digital (SD) is a non-volatile memory card format developed by the SD Card Association (SDA) for use in portable devices. The standard was introduced in August 1999 by joint efforts between SanDisk, Panasonic (Matsushita Electric) and Toshiba as an improvement over MultiMediaCards (MMC), and has become the industry standard. The three companies formed SD-3C, LLC, a company that licenses and enforces intellectual property rights associated with SD memory cards and SD host and ancillary products.
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