How to Choose the Right Memory Card for Your Device

Step by step

1. 1 min

   Identify the physical form factor

   Check your device's storage slot to determine if it requires a full-size SD card or a microSD card. While microSD cards can be used in full-size slots via an adapter, native hardware performance is always preferred to avoid adapter failure.

   Note: Always check your device manual to see if it supports high-capacity standards like SDXC or SDUC.
2. 1 min

   Check the Bus Interface standard

   Look for the Roman numeral on the card label, typically UHS-I or UHS-II. UHS-II cards feature an extra row of pins and are essential for devices that record high-bitrate 4K or 8K video.

   Note: UHS-II cards are backward compatible with UHS-I slots, but you will only see UHS-I transfer speeds.
3. 1 min

   Evaluate the Speed Class rating

   Identify the 'V' rating (Video Speed Class), such as V30, V60, or V90. The number indicates the minimum sustained write speed in MB/s; select at least V30 for standard HD video and V90 for professional-grade high-bitrate cinema formats.

   Note: Avoid cards without a V-rating if you intend to record high-resolution video.
4. 30 sec

   Determine appropriate capacity

   Choose a capacity based on your workflow. For 4K recording or high-resolution RAW photography, prioritize cards of 128GB or higher to minimize the frequency of card swaps and reduce potential data corruption points.

   Note: Formatting a card in-camera is required every time it is inserted into a new device to establish the correct file system structure.
5. 30 sec

   Verify the U3 or Application rating

   If the card is for a mobile device or gaming console, look for the 'A1' or 'A2' App Performance rating. This ensures the card has high random read/write speeds, which is critical for running applications directly from the storage media.

   Note: A2-rated cards provide significantly better performance for app responsiveness than A1 cards.