OLAS Exposure Series Multi Engine Connector (MEC)The OLAS Multi Engine Connector is designed to operate with multiple outboard engines, up to 3 in total. It has been designed to operate with the OLAS N2K NMEA 2000 Wireless Engine Kill Switch and Man Overboard Alarm System or with the OLAS Guardian Wireless Engine Kill Switch and Man Overboard Alarm System. Most commonly required on Yamaha twin and triple-engine boats, this accessory connects the multiple engines into one kill switch system.This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.