I/O Crest SY-PCI50029 Parallel Serial PCI Controller Card General Features: 32-bit PCI interface * One (1) External 25-pin parallel port 2-Port Serial expansion bracket included * Automatically selects IRQ and I/O address Does not support legacy address re-mapping * Supports PCI IRQ Sharing-saves valuable resources for other expansion cards * Supports 32-bit PCI Bus, PCI specification 2.1