just don't buy cables from generic or awful brands, you can go with some reputable ones like cablematters,startech, caldigit, or satechi, also you can check USB

just don't buy cables from generic or awful brands, you can go with some reputable ones like cablematters,startech, caldigit, or satechi, also you can check USB-IF members. For other cables like displayport, just buy only certified cables that can be checked on displayport site, before buying any. same for thunderbolt, etc. you may pay a bit more, but they will comply the specs and be higher quality than the other generic brands.