Product Detail Package Contents - (1) CyberParallel PCI board, (1) Driver CD, (1) Quick Installation Guide Can be installed in 32-/64-bit, 3.3v/5v PCI and PCI-X slots Conforms to PCI v2.2 Plug and Play Full support for DOS- and Windows-based software PCI IRQ sharing feature reduces IRQ conflicts . The "SIIG CyberParallel PCI Card" is best product for you. We recommended SIIG CyberParallel PCI Card