This is a loose 12v rail connection wire with 2 rail connector plugs for the STAS multirail with a cord in different lengths. This cable is available in 15cm, 20cm, 30cm, 40cm, 50cm, 60cm, 70cm and 100cm
Note: when using multiple adapters Do these have to be independent circuits, in other words: the rails may not be connected to each other! Make sure you never connect rails with more than 1 adapter at the same time!!