Brand – Apacer, Model – Apacer AC233 4TB, Type – External HDD, Storage – 4TB, Form Factor (Inch) – 2.5 Inch, Interface – SATA, USB Type – USB Type-A, Transfer Rate (MB/s) – Up to 5Gb/s, OS Supported – Windows 10/8.1/8/7/XP/Vista, Linux Kernel 2.6.4 or later, Mac OS X 10.4 or later, Color – Black, Dimension – 127.7 x 80.4 x 21.5mm, Weight – 240gm, Others – Interface: SuperSpeed USB 3.2 Gen 1, backward compatible with USB 2.0 specification. Power Supply: USB bus powered; No external power required. Transfer Rate: SuperSpeed up to 5Gbps for USB 3.2 Gen 1, Hi-Speed up to 480Mbps for USB 2.0. Certificate: CE; FCC; RCM; VCCI, Specialty – Quick backup / Easy synchronization – Apacers portable hard drive with Apacer Data Manager software provides safe and convenient storage. Increasing your work efficiency effectively, use one-way/two-way synchronization and backup of important personal files to make digital storage life easier. Smart Power Management – Backward compatible with USB 2.0, AC233 uses dual-color LED indicators to display USB 3.2 Gen 1 and USB 2.0 transmissions respectively after connection. Via the built-in smart power management, AC233 will automatically switch to a power-saving mode if no data is transmitted within 10 minutes. It not only effectively reduces power consumption but also prolongs the lifespan of the HDD., Part No – AP4TBAC233B-S, Warranty – 3 Year