I don't think you'll find anything like that: you would need a PBC with a 4x1 2.00mm-pitch socket header and a 4x1 2.54mm-pitch pin header. To rest Trills on surfaces for prototyping I normally use something like Blu Tack to give it enough thickness for the cable to come off the back, or just tape to anchor it to the edge of the table so that the connector sticks out of the table