The installation was very simple and intuitive, so that one does not need the manual. It's all in the dashboard on the front panel.
The main advantage of this camera is that you can connect up to four hard drives by monopolizing not only one port (eSATA and USB in this case).
The computer recognizes the disks independently and all functions are supported. My health control software disks, Acronis Drive Monitor, recognizes without problems.
Note that in the model 3640 Sus3 c, 3 USB is marked but it also works correctly on USB2, but slower course.
It comes in various models, there are some that take into account the RAID configuration (it is not mine and I did not need).
Not many motherboards have eSATA ports but note that USB 3 is faster.
I know there are some who complain that the fan does not cool enough disks, but in my case, the discs are colder than those connected internally (against 32 ° 37 °)
I am very satisfied with this camera that I bought reconditioned by Amazon.
