Sized from 64GB to 256GB, stores lots of video and comes with features that are designed for video surveillance cameras. This MicroSD card is built to record high-definition media in 24 x 7 environments. Designed to work in extreme weather conditions -25°C to 85°C (-13°F-185°F) and humidity resistant. Ideal for your Montavue cameras including doorbell cameras, floodlight cameras, stand-alone cameras, and cameras on your system.