The power strip from Brennenstuhl has a glowing green on / off switch, offering six connection options, which are equipped with a child safety device. The plugging of plugs therefore requires a little effort and is confirmed acoustically by an audible "click". The holes are inclined. The product is well made, it looks solid and safe. The cable is 1.5 meters long, quite thick and of high quality. I have connected a guitar amp and several effects units. A hum in the signal chain, I have not found. All in all a great product at a good price!