The Brainboxes 8 Port RS232 PCI Express Serial Card (Model: PX - 275) is designed to provide robust and efficient serial communication capabilities. This plug - in card features eight DB - 25 RS - 232 ports, allowing for multiple device connections simultaneously. It supports data transfer rates ranging from 110 to 921, 600 baud, ensuring high - speed communication for demanding applications. The card is compatible with a wide range of operating systems, including Windows 10, 8, 7, XP, and 2000, making it versatile for various setups. With a lifetime warranty and support, users can rely on its durability and performance. The package includes the serial card, an installation CD with a manual, and Microsoft signed drivers and utilities for easy setup.