ADATA NH03 2 TB USB 3.0 Portable External Hard Drive ANH03-1TU3-CBK (Black) SuperSpeed USB 3.0, downward compatible with USB 2.0 256-bit AES encryption to keep your data safe and confidential One-touch smart backup button Deliver data transfer rates up to 140 MB/s, a 418 percent performance upgrade from USB 2.0 3 year warranty