http://www.orico.cc/category.php?id=...ESC#goods_list
i have the flat one, friend of mine the "vertical" one.
flat one has the advantage of main-switch on upper front side, whereas the vertical system has it on the rather unpleasant back where one cannot see it.
i like the three-drive-system for off-HDD-cloning.
they also have an adapter( 320 usd) which can backup partitions off-pc. very clever.
and other amazing stuff.