The connector/pinout information may be applied to the vendor Casio, model QV-2900UX in category Portable Devices
There is one pinout found for Casio QV-2900UX.
The pinout (pin-out) is a cross-reference between the contacts (pins) of an electrical connector and their functions. The pin assignment diagram is listed below. Click for details
Mini-USB 4 pin pinout
An electrical connector, is an electro-mechanical device used to join electrical terminations and create an electrical circuit. Electrical connectors consist of plugs (male-ended) and jacks (female-ended).