This HDD backplane is well-proven in extremely hard server duty. Even with highest transfer rates it runs very smoothly. Accordingly elaborate is the temperature control. The aluminum parts dissipate the heat. The 80-mm fan operates reliably & silently. If necessary it is easily removed or attached, no tools needed. For the case of a too high temperature there are optical & acoustic signals. All moving parts are laid out for strongest strain. The trays & their locking mechanism are extremely fitting. They slide without resistance. The aluminum parts are electropolished.