Manufacturer facts
Device compatibility information is based primarily on documentation from the device manufacturer.
Card specifications are taken from card manufacturer documentation whenever possible.
ABOUT
How SD Card Finder works
SD Card Finder is built to answer a simple question: what SD card will actually work with a specific device?
The basic idea
Device compatibility can be surprisingly confusing. Card format, capacity, bus interface, speed class, video speed class, and application rating can all matter, depending on the device.
SD Card Finder collects those requirements into structured data and compares them against documented SD card specifications.
Compatibility rules
SD Card Finder compares device requirements with card specifications such as format, capacity, interface, and speed class.
Compatibility logic is kept separate from the underlying source data.
Recommendations
Recommendations are derived from compatibility and device use cases.
For example, a gaming handheld may be organized primarily around storage capacity, while a camera may require different speed classes for different recording modes.
Commercial links
SD Card Finder may eventually use affiliate links or other commercial relationships.
Those relationships do not determine whether a card is marked compatible. Compatibility is based on the technical data and rules described above.
We leave unknowns unknown
If a manufacturer does not document a maximum capacity or other limitation, SD Card Finder reports that information as unspecified rather than inventing a value.
Some compatibility conclusions may rely on established SD standards or backward compatibility rules. When possible, those inferences are kept distinct from direct manufacturer claims.
Requirements and recommendations are not the same thing
A device may accept many cards while only requiring a subset of their performance. A faster or more expensive card is not automatically a better recommendation.
SD Card Finder tries to distinguish between what a device requires, what it supports, and what is practically useful for a particular use case.
Sources and verification
Device pages include links to the manufacturer documentation used to support compatibility information.
Records also carry verification dates so specifications can be reviewed again as manufacturers update products and documentation.
Still a growing catalog
SD Card Finder is starting with a small number of carefully verified devices and cards rather than a large automatically generated catalog.
Coverage will expand over time while keeping the same source-backed approach.