Seagate 20TB One Touch Desktop External Hard disk | STLC10000400 A front-facing USB C and USB 3.0 port for connecting and recharging devices—even if your computer is off Password-protected external hard drive with USB hub to secure your digital life Out-of-the-box compatibility with Windows and Mac computers Includes Seagate Toolkit backup software for one-click and scheduled backups and file mirroring