I had the impression that both current Dragon variants are externally identical, and that the only real differences are internal to the cabin. Those differences being the removal of crew-centric features like seats, food, toilet etc and their replacement with standardised cargo bags.
Cygus will continue berthing, Dream Chaser will also berth. Right now Dragon is the only cargo vehicle that will be docking on the USOS side.
Too many people repeat the thing about large items but there aren't really that many large items that need to be transfered either in or out of the station.
AB Emblem's embroidered version of NASA's patch for the SpaceX CRS-21 resupply mission to the International Space Station. The flight marks the first use of Dragon 2 in its cargo configuration.
This is now shown as November 15 on the latest SMSR schedule.
Is it 1 & 3 or 2 & 3 for the IDA locations? The Cargo Dragons should be on Node 2 Zenith/IDA-3. Crew Dragons can use either docking port.
According to Gunter's PMA-1 was lost on CRS-7,PMA-2 is on Node-2 Forward, andPMA-3 is on Node-2 Zenith