The Brainboxes VX - 001 1 Port RS - 232 Serial Express Card provides a reliable solution for connecting RS - 232 devices to your laptop. Featuring a 9 - pin DB - 9 Male connector, this ExpressCard offers megabaud data transfer rates and is equipped with a 128 - byte deep transmit FIFO and a 256 - byte receive FIFO, ensuring efficient data handling. With a plug - in module form factor, it is easy to install and supports a wide range of applications. The card is compatible with PC platforms and is backed by a lifetime warranty, making it a durable choice for your connectivity needs.