Cargo Dragon 2, and Boeing Starliner.

Design

NDS supports both autonomous and piloted dockings and includes pyrotechnics for contingency undocking. Once mated the NDS interface can transfer power, data, and air; future implementations will be able to transfer water, fuel, oxidizer and pressurant as well. The passage for crew and cargo transfer has a diameter of 800 mm.

In form and function NDS resembles the Shuttle/Soyuz APAS-95 mechanism

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