hard driveshard diskHDD1.8 HDD1.8 inch move hard disk hddHighlightsSimply affordable, easily portable.quality inside and out.Plug-and-play simplicity .USB powered.Clean lines, modern shape, andquality make WD Elements Portable drives a simply affordable solution to your portable data storage needs.A simple, high quality portable drive that is light and easy to carry. Simply plug it in to any USB port and start saving your photos, music, video, and files.Compact design - Weighing in at only a few ounces, these small drives fit easily into a pocket or purse.Preformatted for PCs - Designed for use with Windows-based computers. Can be easily reformatted for use with Macs FeaturesPhysical Dimensions(Metric):80*60*13.5 mm Environmental Specifications: Temperature (English) Operating:  41°F to 104°F Non-operating:  -40°F to 149°FTemperature (Metric) Operating  5°C to 40°C Non-operating  -40°C to 65°C Package included:1 x  USB 2.0 portable hard drive1 x  USB cable1 x  Quick Install Guide   Specification General Device Type  Hard drive - external Form Factor  1.8" Interface Type  ce-ata Interface Transfer Rate  480 Mbps Spindle Speed  3600 rpm Expansion / Connectivity Interfaces  USB Interface Software / System Requirements OS Required Apple MacOS X 10.4.19 or later, Microsoft Windows Vista / XP Miscellaneous Cables Included  1 x USB cable