One of several optio for CUI boost converter, integrated and tested for the SCUTTLE Robot. Attaches to DIN rail (35mm) without toolsProfessional quality, industrial-gradeDC-DC boost converterThe posted models have a slightly modified variant of the CAD model offered by CUI, inc. This model is not native to SOLIDWORKS.Other 30W models have a matching form factor.Other 50W models have slightly larger enclosure.