If you have an embroidery machine that uses a USB drive and you keep plugging and unplugging the USB drive, BUY ONE! My USB connector became loose from heavy use so I replaced it with this one. I would rather replace this extension cord than have my embroidery machine repaired! No kidding, this is a MUST for your car's health. And yes, I use a strap for my USB as I tend to lose it. It's a bit more difficult with a harness!