PDP 500-137-EU is a transparent controller designed specifically for use with the Nintendo Switch. This aftermarket accessory has been engineered for enhanced user performance, featuring a responsive keypad that provides tactile feedback to ensure precise inputs during gaming sessions. The controller's transparency allows users to view its internal components, offering both an educational glimpse into its assembly and an aesthetic feature. Typically, it is utilised in scenarios where understanding the layout and construction of gaming controllers is beneficial, such as in educational settings for engineering students or workshops.