I'm using this 32 GB micro Sandisk Ultra to record 1080P video to a blackbox recorder in my car. I just popped it in and it worked. The adapter that came with it makes it easy to offload video to the macbook. It appears to keep up with 1080p video very well. I've never missed a frame of audio or video. It is constantly overwritten every 3 days with the oldest event and it has not failed yet. Been using it for a couple of months now. Seller mailed it USPS and it arrived in 3 days.