Updated May 26/18
Blackmagic Multi Dock
MultiDock Thunderbolt 2 Loop Through SSD Dock - $805 - special order
Blackmagic MultiDock 2 is the perfect solution for mounting your media disks onto your Thunderbolt and Thunderbolt 2 based computer. With Blackmagic MultiDock, you get a super fast 4 disk docking solution in a compact rack mount design that lets you insert and remove disks as you need and edit directly from the disks. Blackmagic MultiDock can also be configured for multi disk RAID storage using your computer's disk utility software. If you're shooting or recording onto solid state disks then Blackmagic MultiDock is the perfect solution for mounting your media disks onto your Thunderbolt or Thunderbolt 2 based computer. You get a super fast 4 disk docking solution in a compact rack mount design that lets you insert and remove a disk as you need, so you can edit directly from the disks. Totally eliminate copying because with Blackmagic MultiDock you get massive transfer speeds for super responsive editing, design and color correction. Blackmagic MultiDock can even be used as a disk array when adding multiple disks and striping with your computers disk utility software! Blackmagic MultiDock is attractive and installs in seconds because it uses the disk drivers built into your Mac OS X and Windows Thunderbolt computer!
Find Blackmagic Design SSD Cases here