The quick setup guide briefly explains how to connect the Muse R-Duo and install the hard drives. The installation is quite painless and nearly tool-less. The front of the case simply pops off revealing the drive bays. Two screws are used to attach a single rail to one side of a hard drive. A little care must be taken to make sure you have the drive oriented correctly so that you install the rail on the correct side, using the right set of holes. Basically just take note that the bottoms of the drives face each other and the rail is installed in the center of the drive and you won't have any problems.
Once that is done the drive simply slides into the bay and the rail snaps into place at the top, firmly latching the drive and preventing it from sliding back out. That's it, no case to disassemble or cables to hook up, and drives can be quickly removed by simply pressing down on the rail clip and pulling them back out.
By default the Muse R-Duo comes set for LNR or Linear mode, but this is easily changed. To configure the RAID level, set the dip switches to the desired operation and hold in the reset button while you turn the unit on. Continue to hold the button in for five seconds, then release. This only has to be done if you need to change the RAID configuration. If you are not familiar with the different RAID types, Thermaltake has a RAID FAQ page on their website that explains the various setups. In particular it's important to note that Thermaltake's definition of Linear is JBOD, but in reality, this means each disk is treated as an individual separate volume. Their BIG mode is what I call JBOD (or Spanning) where both physical drives are combined into one logical volume.
Next up, testing and use.