Model Number: ec-520 Brand Name: yeayoo Key Specifications/Special Features: Capacities: 64, 128, 256, 512MB and 1, 2, 4, 8, 16, 32GBBody colors are availableCustomized colors are welcomeCompatibility: for Macs and PCsPower: no external power requiredShock resistance: 1,000GData retention: 10 years (minimum)Warranty: limited lifetimeImprint options: color imprinting and laser engravingBelow are brief descriptions of our branding methods