DB9 Female PCB Mount R/A is a kind of connector that is often used in electrical equipment to offer a secure and dependable serial communication connection. This connection is designed for use on a printed circuit board (PCB) and features a right-angle orientation to enable for more compact and space-efficient designs.

The D-shaped DB9 Female connection contains nine pins or contacts organised in two rows of five and four. The pins offer connections for serial data transfer and receiving, as well as ground and control signals.

This connector’s Right-Angle PCB Mount variation is meant to be placed at a 90-degree angle to the PCB surface, allowing for more flexible placement in a device’s design. This is especially beneficial when space is limited, such as in portable electronic devices or tightly packed electronics enclosures.

Overall, the DB9 Female PCB Mount R/A connection is a commonly used and adaptable connector in many electrical devices that need serial communication, and the right-angle mounting orientation may be very advantageous for designers wanting to maximise space and layout.