WELL LONGED
This ten metre extension cable, when you look at it, smells of quality. The cable is quite thick and has two small blocks, one in the middle of the cable at 5 metres and another small block at one end. These two blocks may be used as signal amplifiers. In any case, this extension cable works very well, no signal weakness and no disconnection of USB devices. I found it expensive at first, but after trying a CLS 10m USB extension cable, bought for 14 euros on Amazon, which always disconnected the peripherals, I understood the price of the LDLC extension cable: it's the price of quality and tranquillity.
But I put one star less because I had to buy another extension cord (2 in all) and that cost me more than 200 euros the 2 extensions!