KopterMax 12 channel motor cutoff and switchYour backup always ready, your UAV always in control The KopterMax A B Failover Switch instantly connects a second, fully independent receiver to your UAV. The moment your primary receiver fails, all 12 channels switch over in under 1 millisecond faster than any flight controller timeout, with no signal glitch and no interruption to flight. Unlike simple signal selectors, this device also generates software defined failsafe values per channel, giving