HV620S Portable Hard Drive 4TB Black AHV620S-4TU31-CBK Features: Subtle and modern appearance LED indicator shows transfer status SuperSpeed USB3.1 interface Scratch resistant surface Compatible with 256-bit AES encryption Specifications: Capacity 4TB Color Black Dimensions (L x W x H) 115 x 78 x 21mm / 4.5 x 3.1 x 0.8inch Weight 230g / 8.1oz Interface USB 3.2 Gen1 (USB 5Gbps)(backward compatible with USB 2.0) Texture Plastic Operating Temperature 5°C(41°F) - 50°C (122°F) Operating Voltage USB DC 5V Power consumption Active: < 5W Idle: < 2W System requirements Windows 7 / 8 / 8.1 / 10 / 11, Mac OS X 10.6 or later (reformatting required for use), Linux Kernel 2.6 or later Accessories USB 3.2 Gen1 cable; quick start guide Warranty 3 year limited warranty