The G-Technology G-SPEED Studio Thunderbolt 4-Bay 3.5 inch Drive Enclosure is a high-performance storage solution for professionals and enthusiasts. With a capacity of 32TB, this enclosure offers ample storage space for large files and projects. The Thunderbolt interface ensures fast data transfer speeds, making it ideal for demanding computing tasks such as video editing, graphic design, and multimedia production. The G-Technology brand is known for its reliability and quality, making this drive enclosure a top choice for those in need of a high-capacity storage solution. This G-Speed DAS interfaces well with MAC devices. It was used, and has been untested, but I have verified that it was working when I received it. HDDs NOT INCLUDED!