I purchase all my cables from Ebuyer (in bulk on promo)or Poundland,and never had any problems.
On my early days of plenty of new spare time and computing, I contacted a very well known cable manufacturer about two of their products which appeared to be the same in manufacture, but vastly different in price. Shock and horror, I was told "Use the cheaper one, you will not notice any difference". And since that day, I have always bought the cheapest, with great satisfaction. After all, if the cheap one fails, then bin it, which I have never had to do yet.