IOC835 Chipset. Easy Plug & installation automatically selects IRQ and I/O address. Supports PCI IRQ sharing-saves valuable resources for other expansion card. Support 32-bit PCI Bus, PCI Specification 2.1. Supports more than one card into system. Fast data rates up to 1.5 Megabytes/sec. Build-in 16 Bytes FIFO. One DB25 parallel port connector