The SparkFun Female DE9 Breakout is a straightforward solution for interfacing with a DE9 connector, often known as a DB9. It features a female DE9 connector and provides access to all nine pins, plus two additional ground connections, via a 2.54mm-spaced plated through-hole (PTH) header. With dimensions of 31.75mm x 22.86mm, it includes two mounting holes compatible with 4-40 screws.This breakout board is ideal for projects requiring a connection to devices using a DE9 interface, such as older computer peripherals or industrial equipment. Whether you're working on retro computing projects or interfacing with legacy systems, this board simplifies the connection process.One of the standout features of this breakout is its ease of use. By breaking out each pin to a PTH header, it allows for effortless integration into breadboards or custom PCBs, making it a versatile tool for both prototyping and permanent installations.Its compact size and straightforward design ensure that it fits comfortably into a variety of setups without taking up unnecessary space. The inclusion of extra ground connections adds flexibility, ensuring stable and reliable performance in your electronic projects.