The Brainboxes 3 Port RS232 PCI Serial Port Card is a universal PCI plug - in card designed for PCs, featuring three external RS232 serial ports. It supports data transfer rates of up to 115, 200 baud and is equipped with 64 - byte transmit and receive FIFOs for efficient data handling. This card is compatible with all popular operating systems, including Windows 32 - bit and 64 - bit versions, and comes with Microsoft signed drivers. The package includes the serial port card, an installation CD with a manual, and sample programs for testing and terminal use. With a lifetime warranty (registration required) and lifetime support, this card is a reliable choice for expanding your PC's serial connectivity.