WD 5TB Elements Portable External Hard Drive HDD &amp Xbox - WDBU6Y0050BBK-WESN &amp 4TB Elements Portable External Hard Drive HDD USB 3.0 Compatible with PC Mac PS4 &amp Xbox - BU6Y0040BBK-WES

- Memory Storage Capacity: 5000 - USB 3.0 and USB 2.0 compatibility. Formatted NTFS for Windows 10, Windows 8.1. Reformatting may be required for other operating systems. Compatibility may vary depending on user’s hardware configuration and operating system - Fast data transfers - Improve PC performance - High capacity