The cable provided with the zBitx has a connector on the end which I would describe as a "crab claw" contact to mate with the female connector center pin. In my opinion, I would say the "claws" would be prone to spreading if you wiggle the connector until?it becomes loose. In my mind a much more reliable approach would be to use?a?full 360 degree "tube/barrel" to make GOOD contact with the center pin in the female connector. There are plenty of 5.5mm x 2.1mm plug cable pigtails out there which do just that. They work great.