"The Lava Quattro-PCI offers four 16550 UART serial ports on a single PCI card. Ideal for point-of-sale (POS) system applications, the Lava Quattro-PCI adds four additional COM ports to any PCI equipped PC. Each of the four ports is capable of a maximum data throughput rate up to 115.2k. Because of its PCI architecture the Quattro-PCI allows IRQ sharing and automatically selects the next available IRQ and COM addresses. The Lava Quattro-PCI makes it possible to connect a bar-code scanner, credit card reader, cash drawer, and receipt printer to a single card using a single IRQ. PCI bus four port serial board with 16550 UARTs. Each port is capable of a maximum data throughput rate up to 115.2k bps. All four ports share one PCI bus IRQ - even when accessed simultaneously, saving valuable resources for other expansion cards. Includes Lava Com Port Redirect Utility for renaming COM ports - allows for backward compatibility with software that supports COM 1-4 only. Easy Plug and Play installation - automatically configures I/O addresses and IRQs. Ideal for connecting a bar-code scanner, credit card reader, cash drawer, and receipt printer to a single card, using a single IRQ. Fully compliant with PCI Specification 2.1."