I have three security cams, and all three (after this purchase) now have this brand/model card in them. The specs don't lie, and the SD card is perfect for the purpose I bought them - no issues whatsoever. Plug, and play. Read/write speed is as per specs, thus has helped ability to monitor cams considerably (connectivity/lag/etc). The higher capacity of this card means event-triggered recording ensures the card lasts AGES before overwriting older footage (e.g. a 32GB card was estimated to last four-plus weeks). Image and video capture/resolution, etc, are all per product claims. Given this is my third purchase of same brand/model of micro SD...view more