USB 3.0 Hub small (70 x 70 x 13 mm) which nevertheless allows to connect USB jacks of all sizes. In my case, I enjoyed the very short connection cable (15 cm) so compact. A blue LED lights to check the power of the unit. For cons, the voltage supplied is insufficient to correctly turn a non-powered external HDD in my case a WD My Passport 2TB is sometimes acknowledged but régulièrement.Dans cut this configuration, the safest way is to choose a USB Hub with power supply.