The G-Technology G-DRIVE Thunderbolt 3 External Hard Drive (4TB) is an ultra-fast, high-performance storage solution featuring Thunderbolt 3 and USB 3.1 Gen 1 interfaces in an all-aluminum enclosure. The G-DRIVE desktop storage is perfect for storage-intensive applications like audio/video editing or digital photography. With a high-capacity, Enterprise-class 7200RPM hard drive, the G-DRIVE device is plug and play on Mac, and easily reformatted for Windows®. One of the Thunderbolt 3 ports is used to interface with your host system at speeds of up to 245 MB/s, the other can be used to daisy chain up to five additional devices to your G-DRIVE. Thunderbolt 3 also supports 10 Gb/s USB 3.1 and for those who wish to use this drive with their USB 3.0 Type-A or USB 2.0 Type-A system, a USB 3.0 Type-C to Type-A cable is included.Features: Daisy-chaining for 5 additional devicesTransfer rates up to 250mb/sDual thunderbolt 3 ports and usb-c portFast, enterprise-class 7200rpm hard drivesStylish aluminum designWorks with time machine, plug-and-play setup on mac os