Raymarine SeaTalk NG Spur Cable 5mSeaTalk NG Spur cables are used to join individual instruments, sensors or displays to the backbone. The white connectors on each cable fit into white spur connectors found in backbone T connectors and 5 way connectors and provide a secure, waterproof connection. Spur cables reach from your device to the nearest spur connection in the backbone. Spur cables cannot be lengthened or joined together. Cable Length: 5m (6. 25')