DYMO LabelWriter 450 Print basic lables for envelopes packages files inventory barcode and more at speeds up to 51 lables per minute package includes LabelWriter 450 software USB Cable Cleaning card AC Power Adapter User guide Quick Start guide and starter roll of labels Works with Windows XP or Windows Vista (32-bit 64-bit) or Mac OS v10.4 or later USB connected; includes cords cables software instructions and starter labels