Developers Overview

An Introduction to SD Technology

SD technology delivers high-performance products that simplify how millions of consumers capture and enjoy video, photos, and sounds every day.

As the de-facto industry standard, SD technology is utilized across multiple market segments including mobile phones, digital cameras, MP3 players, personal computers, printers, car navigation systems, electronic books, and many other consumer electronic devices.

Market-leading SD technology is an innovative, always evolving flexible storage media powering the future of the digital world.

SD technology is a bridge media allowing a card to transfer data from one device to another. This unique feature gives consumers the ultimate flexibility and convenience to store and share digital contents anytime and anywhere.

SD memory cards are solid state, rugged, reliable, interoperable and easy to use. Plus, they are available in a variety of formats, capacities and speed classes, including SD, miniSD and microSD.

Learn more about SD technology

	SD	miniSD	microSD
Standard (Up to 2GB)
High Capacity (4GB to 32GB)
eXtended Capacity (Over 32GB up to 2TB)

SD Memory Card Formats

Simplified Specification Downloads

Simplified versions of selected SD memory card specifications are available for download by developers. To get access to the full specifications, join the SD Association.

Available Simplified Specifications:

The SD logo

Start Using SD Technology in Your Products

Interested in using SD technology in your next product?
Learn How