SanDisk Ultra microSDXC UHS-I Class 10 - 64 GB

UHS-I (Ultra High Speed I) is a type of bus interface that allows for faster data transfer speeds compared to older standards. It's a common specification for microSD cards.

While the card is Class 10 and U1, suitable for Full HD video, it's generally not recommended for continuous 4K video recording, which often requires faster cards like UHS Speed Class 3 (U3) or higher for reliable performance.

The A1 rating means the card is optimized for application performance on Android devices. It guarantees a minimum random read and write speed, as well as sustained sequential performance, allowing apps to launch and run faster.

Always safely eject or unmount the card from your device before removing it. Avoid removing it during read/write operations. Regularly back up important data to another location.

No, this is a microSDXC card. You will need a microSD to SD adapter to use it in devices with a standard SD card slot.

SanDisk typically offers a limited lifetime warranty on its Ultra series cards. Please refer to the official SanDisk warranty information for specific details and terms.

The amount of Full HD video a 64GB card can store varies greatly depending on the bitrate and compression of the video. As a rough estimate, it can hold several hours of Full HD footage.

Ensure the card is fully inserted. Try cleaning the contacts gently with a dry cloth. Test the card in another compatible device or use a card reader. If still not recognized, try formatting the card in a computer (backing up data first if possible).

Verify the device's slot supports UHS-I speeds. Ensure the card is not full, as performance can degrade. Check for any software updates on your device. For write speeds, ensure the device's internal storage or connection isn't the bottleneck.

Safely eject the card from devices after use. Avoid removing the card while data is being written or read. If errors persist, back up any recoverable data and reformat the card. Consider using a higher-tier card for critical data.

Try formatting using a different method (e.g., computer's disk utility vs. device's format option). Use a reliable card reader. If formatting fails repeatedly, the card may be damaged.