This USB 3.0 Alu case is very clean. The disc is fully held by 4 screws in addition to the 4 of the shell itself (that is seen in the photo. The limp is a bit fragile and low-end LED Frankly ... that the housing n ' not exactly. The USB 3.0 Dual USB cable (DATA + and one ALIM ALIM) is too big and a little stiff. The rates are good :-)