With a 8TB storage capacity, the d2 Thunderbolt 2 External Hard Drive from LaCie can hold plenty of data including large format files such as 4K video, audio, and more. For connectivity, it's equipped with two Thunderbolt 2 ports and a single USB 3.0 Type-A port, delivering speeds of up to 220 MB/s. Additionally, users can install an optional LaCie SSD for faster performance. The d2 is enclosed in an all-aluminum chassis for heat dissipation and long-term durability.