These are simple adapters like all other "brands", they are mass produced, rebranded or distributed. The main thing is that they work. What about low ratings? A total bummer, but a small percentage of flaws are expected of anything that is mass-produced (as opposed to handcrafted and carefully crafted items, which they definitely aren't). With any mass-produced product, there is an expected small percentage that will not work perfectly or will fail. Sometimes go ahead and get another one. They're pretty cheap/affordable and when you figure out what you're paying for and how long they last (I have other adapters that have lasted over 20 years) they are a great deal.
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