... flash Driver is necessary for everyone.It supports preload and auto-run(automatically run a web-link, music, texts, pictures, demonstrations, ... PC , Notebook and Macintosh with USB holeCertificateSGS,CE,EN71,ROHS,CA65CustomerWarmart,Coca Cola, Lenovo,Canon,Nikon,Mary Kay,etcMOQ50 ... full capacity,Samsung chip is the best.Certificate CE,ROHS,FCCMemory Capacity256MB,512MB,1GB,2GB,4GB,8GB,16GB,32GB ...