Hello,
I am not a Rock64 user (yet), but I use a Fantec case for my drives. They have some of them working with USB 3.0, eSata and even some cases with USB 3.1.
The one I have has USB 3.0 and works really well, it keeps the drives at a good temperature since it has a fan controlled automatically by the case depending on the internal temperature.
I chose one without RAID, as it suits better for my configuration, but if you are interested on it you also have some boxes with it.
I am not a Rock64 user (yet), but I use a Fantec case for my drives. They have some of them working with USB 3.0, eSata and even some cases with USB 3.1.
The one I have has USB 3.0 and works really well, it keeps the drives at a good temperature since it has a fan controlled automatically by the case depending on the internal temperature.
I chose one without RAID, as it suits better for my configuration, but if you are interested on it you also have some boxes with it.