The magnet ends r strong. They have been excellent for routing cables (knowing or labeling what the red is for), (it’s mine and not yours, they have many color choices), providing a firm hold to the connector until I’m ready to use it, most important providing a way to label my cables whether in use or nicely wrapped in figure 8 for storage. I use bright color or white. I buy my husband all black (charger, cables,.). They have many groups of colors. When I say the magnets r strong my husband was convinced they were glued together at first, until I showed him one I was using. I haven’t experienced any EMI interference between the magnets and usage of the cables.
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