SanDisk High Endurance 32GB microSDHC Class 10 twin pack

Twin-pack microSDHC for write-heavy use

This kit supplies two 32 GB microSDHC cards rated Class 10, delivering a minimum sustained write speed of 10 MB/s. They are built for devices that record continuously, such as dash cams, security cameras and action cameras. The High Endurance line uses flash memory selected for longer write-cycle life than standard cards.

Step up from Class 4 or older microSD

Cards rated Class 4 guarantee only 4 MB/s write speed and can drop frames during full-HD recording. Moving to Class 10 removes that bottleneck for 1080p capture and extends the usable life of the card in always-on recording scenarios. The upgrade is worth it whenever the host device writes a constant stream of video for hours at a time.

Limited to microSDHC host devices

The microSDHC format tops out at 32 GB, so these cards will not work in hardware that only accepts the original microSD standard limited to 2 GB. Hosts must explicitly support the microSDHC specification; many older phones and cameras made before the format existed cannot recognise the card. Capacity cannot exceed 32 GB per card, and the 64 GB to 512 GB microSDXC range requires a different host controller.