1. The disks are supported on narrow rails and plug into SATA power and data connectors on a backplane in the enclosure
2. The disks are powered from an internal power supply.
A mains lead is provided
3. There are 2 rear ports, one eSATA and one USB3.
Cables for both are provided.
If you are using eSATA, then the controller in the PC must have port multiplier capability (because you are attaching multiple drives to one SATA port)
4. To insert and remove the disks you must attach a (somewhat flimsy) plastic handle to the front screw positions on each disk. More accurately, the handle is used to remove the disk from the SATA connectors - just move it to the 'down' position. 8 handles + 16 screws + small screwdriver are in the box.
5. Once the disks are inserted, they are held more securely in position by a metal door + thumbscrew arrangement. There are two of these, one at the top and one below, each retaining 4 disks.
6. The case door is lockable and is also held in place by a plastic clip affair. You may want to remove this (2 screws) as it is unnecessary and may require a sharp tug to open.
7. Also in the box are two (pretty useless) instruction leaflets, one in English, one in German (ICY BOX products are distributed by the German company RaidSonic Technology)
8. The enclosure is much smaller than the picture suggests - 13" high x 5" wide x 8.5" deep.
9. What else is needed? Nothing - other than the correct ports on the PC.
10. No experience of using drive adapters in this enclosure, so I can't answer that one. The adapter would need to provide the same external dimensions as a 3.5" disk, position the connectors in the right place, and be able to accept the screw-on handle...
11. Err - that's it...
Hope this helps - kind regards
PS: I have no connection to either Scan or RaidSonic