Sony 2TB Pro External Hard Disk Drive with Thunderbolt and USB 3.0 Ports (PSZHB2T//C) Reinforced protective case reduces the chance of damage for the safe transport and storage of content Engineered with heavy silicone cover for professional shock-resistant protection 1x Thunderbolt and 1x USB 3.0 ports with unique dust and splash-resistant interface doors Up to 120MBps data transfer rate via USB 3.1 5400rpm disk speed Pre-installed formatting software to switch between FAT32, HFS+ and NTFS Stackable for easy daist-chaining with increased air flow between drives and less heat build-up Windows and Mac compatible