TD2 Thunderbolt 31. Portable design for professionals especially those with strict speed and safety requirements, including 4K video editing. Starting from March 26th, 2021, Mac with M1 security chip was fully supported. 2. Two 40Gbps Thunderbolt 3 interfaces, reading speeds up to 760MB s (with SSHD in RAID 0). Compatible with 3. 5" and 2. 5" SATA HDD, 2. 5" SATA SSD. 3. Hardware RAID: RAID0, RAID1, JBOD, SINGLE; Support up to 40TB storage capacity (20TB x 2, in RAID