ROFU introduced its new door cord, the ROFU 10320HD Armored Heavy Duty Door Cord, in July 2015 at ALOA in Reno. No more running wires through the door cord; the ROFU 10320HD has a PCB in both ends. Just connect your wires and that’s it. In-house testing proved the ROFU 10320HD was able to withstand up to 550 lbs.