Allocacoc PowerCube DuoUSB Extended, 4x distributor, 230V power The Cube is great but the support should be reconsidered. It is in de description for gluing or not to smooth surfaces for screws. Just as screws ?? Two 3mm holes exist because one brings any nails but no screws purely especially not the head of the screw. Have in the holder now has four holes drilled in the corners, countersunk and with 6mm dowel and countersunk 4.0mm fixed to the wall. Keeps now 1a but for 1 point deduction