These premium Verbatim 32GB SDHC memory cards are a fast Class 10, which is the quickest transfer speed available.

When buying SDHC cards for High Definition recording, make sure they're at least Class 6 or higher. This refers to the read/write speeds; a rating less than Class 6 can lead to stuttering video and slow downloads.

As for duration, the HD170 Stealth records at a rate of approximately 4GB per hour, so this 32GB card will hold about 8 hours of HD video. However, the GoPro Hero2 records at approx 8GB per hour, so the 32GB card will only hold about 4 hours of HD video.

These cards DO NOT fit the new model Drift HD camera.