hey guys! I found the cable on the net, bought it and guess what? after one week I was storing the invoice and the warranty together with the one of my NP550P7C and I discovered a plastic envelope with that cable inside, with screws etc. If someone is interested I can send it for the price I spent to get the new one. I am from Italy. p.s. I installed another 1TB hard drive and it works like a charme!