WD 1.5TB Black My Passport Ultra Portable External Hard Drive - USB 3.0 - WDBBKD0015BBK-NESN  [Old Model] 1.5 TB Storage Capacity Optional 256-bit AES hardware encryption Automatic local and cloud backup. 3-year limited warranty. Stylish design with a range of exciting colors. USB 3.0 connectivity. Formatted for Windows. For Mac compatibility this Hard Drive requires reformatting. Refer to Application Guide for guidance on this Formatted for Windows. For Mac compatibility this Hard Drive requires reformatting. Refer to Application Guide for guidance on this