Just unpacked and my herumschwirrenden, sometimes very old, plates inserted immediately into the case. 1TB, 2TB, 3TB and 4TB, all were recognized immediately and can be used without any problems. According to the manual are definitely up to 6TB per plate possible, ie 24TB in total (I was to the effect so skeptical). The case itself does a pretty solid impression, especially when it is 4 plates that make housing very difficult. The operation is very simple. Front door from, second door behind it as well and the plate (s), including that contained in the package "handle", which is screwed in a few seconds on the plate (thanks supplied set of screws and -zieher), slide simply into the case until the terminal sits. And without having to be formatted what I had previously feared. Then first connect the charging cable attached to the housing and then into the wall socket. Then "Power on" and the plates are on Windows, recognized in my case, Windows 8.1, and can be described immediately if necessary. As I said, the whole thing very easy. The button "interface" (3 seconds hold) switch between USB 3.0 and eSATA, "Sync" (3 seconds hold) turn on in 3 working modes: 1. "After turning off the PC, the device switches after 15 seconds of" 2nd and 3rd "After Abschlaten the PC, the device switches to standby" "synchronization is disabled". With "fan" can turn the 3 stages of the fan to be regulated, as well as via the stage "Auto" and the regulation. Speed. Depending on the stage of the fan is understandably louder or quieter, where He does nevertheless "fairly" unobtrusive acts, though not really quiet, except the highest level, but then very noisy! [ADDENDUM: 26/02/15] In my case, the housing via depends. USB on Raspberry Pi 2 and an eSATA / USB adapter on your desktop so that I can switch over said "interface" button, on the housing, between RPI2 and computer, without that I must umstöpseln anything (In addition, the plates are always the housing even "safely removed"). What I do not like the RPI2 but in the application, is 1, which by some reviewers already mentioned before me status LED which is very bright / flashy and quite disturbing indeed, if these finds its place next to the TV and 2., the standby function does not work, that is the housing runs in continuous operation (On RPI2, not on the computer!) until you turn off it manually .. Maybe the latter approach is still to solve, it would be nice, at least somehow. However, all in all, I recommend this case makes an overall good impression, especially for the price of just 100 .. And 24TB maximum. Personally, I am satisfied so far.