We recommend drilling out the top right CPLD mounting hole, as in the photos, to 3.2mm, this will enable the cable to exit the case easily and provide some strain relief, a blob of hot glue should help hold it in position to get the best results. four-d-pi-shop is the ebay arm of CJE Micro‘s & 4D, who have the world's widest range of Raspberry Pi/RISC OS & Acorn accessories including many from third parties, most of which are famously normally 'In Stock'. Established in 1981, we have always specialised in hobbyist computing and have gained a reputation for a broad knowledge with high quality pre- and post-sales service. CJE & 4D have, over the years, developed many of our own products for Acorn/RISC OS & Raspberry Pi computers. From the first ever 3rd party accessory for BBC Micro Model.