NMEA2000 (Devicenet) Female to Seatalk NG spur female adapter cable. Length: .12m (4.45"). Used to connect NMEA 2000-compatible devices to Raymarine's SeaTalk NG backbone. The metal, threaded DeviceNet connector attaches securely to the NMEA 2000 connection, while the white spur connector plugs into a SeaTalk NG spur connection.