The Lava DSerial-550 breaks the speed and IRQ bottlenecks that limit expandability and performance in today's PCs. Combining both high-speed serial and parallel interfaces on one PCI bus card, the Lava 2SP-PCI provides PC users with a single board (and shared IRQ) solution for all of their I/O connectivity needs. The Lava 2SP-PCI incorporates two high-speed 16550 UART serial ports with a maximum data throughput rate up to 115.2k bps, and one enhanced (EPP) parallel port which is 3 times faster than any built in parallel port. PC users can now connect external modems, POS devices, PalmPCs, as well as all types of external drives, fast printers, parallel port scanners all to one card, using one system IRQ.