WD Western Digital Purple 256GB microSD Surveillance SC QD101WD Purple SC QD101 microSD from Western Digital Surveillance 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