Meet the Glyph Blackbox PRO 40TB RAID Array: a storage system with 2 bays that you can use for 20TB hard drives. It has 2 x Thunderbolt 3 ports. It has RAID 0, 1, JBOD, and SPAN modes. You can daisy chain up to 5 of these with a single cable to your computer. You can also attach a 4K monitor
This RAID has a rugged aluminum shell. It is formatted for macOS and supports Time Machine.