CE Marks
There's was some conversations this past year over on Reddit about some poor quality products. In particular, some products that were "drop ship" from China and would take a few weeks to arrive.
Someone posted this graphic, and I am re-posting it as a reminder as people are now in full swing for Christmas:
Think twice when you pick up something that looks cheap, you might be buying a knock off from China or another country. The item may not meet local code standards and could cause damages to your products.
Earlier this year, I was excited about some iPhone 6s Plus cables that I purchased on Amazon, only to find out that they didn't last a few weeks and are not completely useless.
You may hate to pay the "full price," but there's a no sense of saving money by purchasing knock-offs only to find they are useless after a couple of times using them.