Hi, everybody! Long ago I use this site and often we buy equipment from Thomann. Never was problems... if there were issues - they were always resolved. That I can tell about Thon Rack 12U Profi 50 Shockmount. There are no have the problems, very convenient, is thought over to trifles. between walls and inserted equipment there is a special gap - that helps at additional ventilation, locks - butterflies work smoothly, it is much important that the rivers has rollers - lock that as helps during the work. In every possible way I advise, especially if you work in the computer, upsy and processings... the top panel can quite be used as a table for the additional equipment (the monitor etc. ) Good and kvalitetny equipment. Thanks to developers! Bless!