“Forget my first review of this cable and comment about not being compatibel with Pibow case. It IS compatibel. The Pibow case is designed with the front of the sockets are alomst flush with the case. When I tested after putting the Pi back into the case everything worked. So 5 of 5 stars for both cable and Pibowcase.”
Ahoy Nils! This adaptor should work fine with the Pibow, so it might be worth checking you've got all the layers the right way round - drop us a line at support@pimoroni.com if you need help!