This PCI-based RS232 Powered Serial Adapter Card offers an easy way to add self-powered serial devices to your computer, POS solution, or manufacturing application. The adapter provides a high-performance serial port that can be configured to deliver 5 or 12 volts of power to compatible devices, and for additional flexibility, this card can be used in PCI (5 volt) or PCI-X (3. 3 volt) expansion slots and supports Windows (including 64-bit editions) and Linux environments.