It's WD Purple
Designed for Surveillance. Being a member of a market-leading brand gives you assurance that this card is designed with the right robustness, performance and features for always-on security video cameras and edge devices.

Put More Confidence In Your Cameras
Ultra Endurance. WD Purple SC microSD cards are designed for continuous 24/7 recording should cameras lose connection with the NVR, providing additional confidence in your security video solution.

Smart Storage Maintenance
Card Health Monitoring. In compatible cameras, card health monitoring capability allows you to get notified when it's time to service your WD Purple microSD card, so you can perform preemptive storage management. 

Robust Storage, Indoors or Outdoors
Supports -25°C to 85°C temperature range; humidity resistant. Have peace of mind that this card is designed for continuous operation in extreme weather conditions and in a variety of climates.

Continuous Capture, Hours or Days
Capacities up to 512GB. WD Purple microSD cards are built with advanced 96-layer 3D NAND technology, ensuring high performance, reliability, and endurance. Western Digital offers a wide range of capacities for different cameras, resolution, and recording implementations; use for both motion-triggered and continuous recording

Ideal for
Ideal for mainstream video surveillance cameras supporting on-camera storage (microSD slot) for stand-alone recording or failover local storage in the event of network outage

Form Factor microSDHC™