A cryogenic connector comprising: - a connector plug comprising: - a generally cylindrical plug body having a generally cylindrical plug passage extending therethrough; - a nipple; - a connector socket comprising: - a generally cylindrical socket body having a generally cylindrical socket passage extending therethrough; - a quick-acting coupling configured to be lockingly engageable with said nipple, said quick-acting coupling having a close-release element configured to be able to switch said quick-acting coupling between a closed position and a released position; - a securing device configured for applying a securing force on said close-release element to secure the quick-acting coupling in its closed position; - means for releasing the close-release element configured to apply a release force opposite to and greater than said securing force onto said close-release element to thereby bring the quick-acting coupling in its released position, for allowing the connector plug to be separated from the connector socket; wherein the cryogenic connector is configured for conveying a cryogenic medium between said plug passage and socket passage when the connector plug is lockably received by the connector socket, characterized in that said securing device is a pneumatic securing device comprising a pneumatic actuator configured to apply said securing force onto said close-release element, and in that said securing device further comprises a connector spring configured to apply a secondary securing force onto said locking ring. - a connector plug comprising: - a generally cylindrical plug body having a generally cylindrical plug passage extending therethrough; - a nipple; - a generally cylindrical plug body having a generally cylindrical plug passage extending therethrough; - a nipple; - a connector socket comprising: - a generally cylindrical socket body having a generally cylindrical socket passage extending therethrough; - a quick-acting coupling configured to be lockingly engageable with said nipple, said quick-acting coupling having a close-release element configured to be able to switch said quick-acting coupling between a closed position and a released position; - a securing device configured for applying a securing force on said close-release element to secure the quick-acting coupling in its closed position; - means for releasing the close-release element configured to apply a release force opposite to and greater than said securing force onto said close-release element to thereby bring the quick-acting coupling in its released position, for allowing the connector plug to be separated from the connector socket; - a generally cylindrical socket body having a generally cylindrical socket passage extending therethrough; - a quick-acting coupling configured to be lockingly engageable with said nipple, said quick-acting coupling having a close-release element configured to be able to switch said quick-acting coupling between a closed position and a released position; - a securing device configured for applying a securing force on said close-release element to secure the quick-acting coupling in its closed position; - means for releasing the close-release element configured to apply a release force opposite to and greater than said securing force onto said close-release element to thereby bring the quick-acting coupling in its released position, for allowing the connector plug to be separated from the connector socket;