Did DPA make the custom cables for you or did you have it modified afterwards?
DPA made the pair of shorter cables for me. The ones with the in-line miniXLRs were purchased second-hand from page, who, you may recall, used to post here frequently. I looked back at our correspondence, and, while there was nothing definitive, he did say that these were a "different order" from the mics I purchased from him that included these, suggesting that he got them from DPA. Shitty photo attached.
I've never had one of these in my hands. Does the tiny input side of the cable have some sort of locking tab like a typical XLRF?
The silver tab in the photo from al w. is the release "button". It is a piece of spring steel, but the internal part looks the same as a Neutrik connector. It requires a bit of force, which, coupled with the minimal grip space, make these hard to disconnect. For me, a righty, if I hold the mic body in my left hand and push the tab with my left thumb, I can wedge my right-hand nails under the connector to remove it. Not easy with freshly trimmed nails and make sure you have a file on hand if you are due for a clipping.