PCI 4PT SER DB9 LP ROHS What better way to efficiently use system resources than Lava's four-port Quattro-PCI/LP? The board provides the easiest way to add four high-speed 16550 UART serial ports in your system using only one system IRQ while fitting into a low-profile PCI chassis. The Quattro-PCI/LP is widely used for connecting various high-speed consumer peripherals to a PC. The fanout cable connection is popular with POS system manufacturers while kiosk builders find pin header connection suited to in-the-kiosk computers.