This SYBA PCI card is a perfect addition to your computer setup, providing you with 2x Serial and 1x Parallel ports for your peripherals. This expansion card is compatible with PCI slots and is ideal for those who need additional connectivity options. The card is made by Syba, a trusted brand in the computer components and parts industry. It comes with external interfaces for two Serial (RS-232 - DB9M) and Parallel Printer DB25F ports, allowing you to connect multiple devices at once. With this card, you can easily expand the capabilities of your computer and enjoy seamless connectivity.Interface connectors take two backplane PC slots.