Hi all. I just bought my duet this morning, and went looking for connectors....
In the documentation (https://duet3d.dozuki.com/Wiki/Connector_and_spare_part_numbers) it says ...
4 Pin shell - 22-01-2045. I believe that this is now out of date - its certainly hard to find these in the usual place, some suppliers mark it as obsolete. I believe that 22-01-3047 is the replacement. The search was made more difficult because the molex data sheet has a generic image, but the 3d models are as expected.
This would make the 2 pin shell 22-01-3027 etc
I'm not confident enough to change the wiki yet, but have ordered some...
Kev