For boxes that have connectors already installed click here.
Some images of examples of the boxes with connectors we do have in our system.
If the boxes would not have the connections that you are needing you can e-mail modenclosures@digikey.com with full details on what you would be wanting.
The data they would need would be the full drawing of the box and all modifications you are needing for that item.
If you have a specific connector or set of connectors that you would like to use you can list their manufacturer item numbers in the drawing as well.
See also https://forum.digikey.com/t/enclosure-box-modifications/143
For some more information on custom boxes.