WD WDBUTV0040JSL-NESN Thunderbolt Duo DAS - 2x HDD Support - 4TB Installed HDD

My Book® Thunderbolt™ Duo dual-drive storage system delivers the optimum fusion of performance and capacity. This drive offers two Thunderbolt™ ports delivering the revolutionary data transfer speeds available only with Thunderbolt technology. Daisy chain multiple devices through My Book Thunderbolt Duo and enjoy nearly unlimited flexibility and performance in your creative life.