A syringe adapter including a housing, a cannula having a first end and second end with the second end of the cannula positioned within the housing, and a seal arrangement positioned within the housing with the seal arrangement movable within the housing between a first position where the seal arrangement is disengaged from a mating connector and a second position where the seal arrangement is engaged with a mating connector, the seal arrangement comprising a membrane. The syringe adapter including a lock mechanism, where the seal arrangement includes a lock interface that is configured to engage the lock mechanism when the seal arrangement is in the second position and when the lock mechanism is in the locked position, and where the lock mechanism is disengaged from the lock interface when the seal arrangement is in the second position and when the lock mechanism is in the unlocked position.