The Lava Octopus-550 provides the easiest way to add eight 16550 UART serial ports to a PC system while using only one system IRQ! This eight-port board is one of the most dependable multi-port serial boards around. It is an ideal communications solution in an ISP or remote access system environment. The Octopus-550 is also popular in Point-of-Sale systems, where it is a very cost-effective alternative to many other eight-port boards on the market. Lava Computer PCI Bus 16550 Eight Port Serial Board is one of many USB Hubs, Adapters & Switches available through Office Depot. Made by Lava Computer.