Techly 309746, HDD, Serial ATA, Serial ATA II, Serial ATA III, 2.5,5.25", 12 TB, USB 3.2 Gen 1 (3.1 Gen 1) Type-B, Black Techly 309746. Storage media type: HDD, Storage drive interface: Serial ATA, Serial ATA II, Serial ATA III, Storage drive sizes supported: 2.5,5.25". Host interface: USB 3.2 Gen 1 (3.1 Gen 1) Type-B. Product color: Black, Maximum data transfer rate: 5 Gbit/s, Certification: CE , FCC , RoHS. AC input voltage: 12 V, Input current: 3 A. Windows operating systems supported: Windows 10, Windows 7, Windows XP, Mac operating systems supported: Mac OS X 10.0 Cheetah