Although cables and adapters aren’t necessarily expensive, there are some people who might be buying in bulk or want to avoid adding unnecessary expenditures if they don’t have to. In this case, buying used cables might come into one’s mind. Of course, with that comes concerns about safety. A good rule to follow is to always check the quality of the item that you’re buying, especially when buying old cables or adaptors. If you do and find no issues, then there are no problems with used cables or adapters.