Item No.: UD4100B Product Name: Full color printting USB Stick Description: Full color printting USB Flash Drive application --- Ritual complimentary gift best choice. Enterprise advertisement Storage Dimensions (L x W x H): 68.30 x 20.00 x 7.50mm Weight: 18g Available capacities: 256MB, 512MB, 1GB,2GB,4GB Hi-speed USB2.0 certified Compatible with USB1.1 For Mac and PC, no driver required No external power required Functions as hard drive LED indicates power, read / write Automatic system detection as removable disk Shock resistance: 1,000g Min. data retention: 10 years 3-year warranty Fashionable design Pretty look, silver plastic casing, reasonably small size and smooth feel Can be used with Mac and PC, no need for external power