Hello After purchasing this I follow very disappointed, in fact the site builder occurs and aluminum, while it is steel but hey it was not excessive, it was announced an LED activity and a LED power, fake there only seeing activity that one can not connected to the mainboard disconnected without hard drive activity of the tower, or have a SATA controller card with branching hard drive activity. Do not make like me you have not made careless by dealers in the level information on the product, the product exists with seeing activity / power in DLOCK