Clear, practical storage advice

Find the right card.
Store with confidence.

Understand SD and microSD card types, capacities, speed ratings, compatibility, and care—without the technical clutter.

Plain-EnglishBuying guidance
Device-firstCompatibility help
IndependentPractical information
01CapacityMatch your workload
02SpeedChoose the right class
Smart guide2026

Shop by device

The right storage for the job

Different devices create different demands. Use your hardware and recording needs as the first filter.

Drones & action cams

Compact microSD cards that can sustain high-bitrate video recording.

Video card guide →

Not sure?

Check compatibility first

Your device manual lists the supported format and maximum capacity.

See the checklist →

Decode the label

Small symbols.
Useful information.

Card labels tell you more than capacity. The ratings show minimum sustained write speed and, in some cases, app performance.

Compare speed ratings
MarkingMinimum writeUseful for
C1010 MB/sFull HD video
U110 MB/sEveryday recording
V30 / U330 MB/s4K video
V6060 MB/sHigh-bitrate video

Always follow the minimum rating recommended by your device manufacturer.

The essentials

Four checks before you buy

A little preparation prevents most storage-card problems. Confirm these details before choosing a card.

01

Confirm the physical format

Full-size SD and microSD cards are not interchangeable without the right slot or adapter.

02

Check the capacity limit

Older devices may support SDHC but not larger SDXC cards. Check the manual before buying 64GB or more.

03

Match the speed requirement

High-resolution bursts and 4K video need consistent write speed, not only a high advertised read speed.

04

Format, eject, and back up safely

Format new cards in the device, eject before removal, and keep important files in more than one place.

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