The cable extensions DO NOT plug into the motherboard. They lengthen the cables by plugging into the existing connectors outside of the control box.
1 meter of extension for all cables on the CR-10, CR-10S
No soldering, cutting or crimping needed. Just plug the new cables into the old ones and reconnect to all the components. New cables are labeled like the originals
These extension cables are perfect if you're wanting to relocate your control box outside of an enclosure or anywhere basically 1m away from the original location.