Easily add additional serial ports to your system. The Multi-16H/PCIe is equipped with SystemBase’s powerful semiconductors to deliver maximum performance up to 230.4 kbps with the world’s leading 256 byte FIFO preventing overrun errors. Combine that with the need for fewer components and you get cost-effective and reliable connections to your serial devices. The Multiport boards support most Windows operating systems and include 15,000 volt surge suppression eliminating blown ports.