Based on the average of comments the price / quality ratio of these extensions seemed interesting .... well, I can say that I had just paid for. While I can criticize delivery seller who framed with what was announced, it is not the same for more than basic quality of the product. I wanted to save money and I screwed it up, especially for 60cms cable provided to connect (read) a memory stick in the back of a TV and disconnects 2 once (so do talk not the connection test a hard drive!) ... The extension of 1.80m for a PC is also very limited. Therefore produces unreliable and inefficient ... but at that price it is sometimes a game of chance ... I played ... I lost !!!