Dashcam SD Card Size and Capacity Guide

Use a capacity listed as compatible by the dashcam manufacturer. Pick within that range according to the number of cameras, recording quality and how long you want footage retained.

No. A card above the supported maximum may not format or record reliably, and capacity does not compensate for unsuitable write endurance.

There is no universal duration. Bitrate, resolution, frame rate, audio, channel count and protected-event allocation determine how quickly storage is used.

Some cameras request periodic formatting as maintenance. Repeated unexpected errors can also indicate an incompatible, worn or corrupted card; follow the model's support guidance.

For continuous loop recording, an endurance-rated card that meets the camera maker's requirements is generally the appropriate class of product.