This 1 Port Serial ExpressCard Adapter lets you add a serial port to your laptop or ExpressCard equipped desktop computer, using an available ExpressCard slot.Featuring 128-byte FIFO communication, and a high performance 16C950 UART, the ExpressCard Serial Adapter card offers up to 921.6Kbps data transfer rates, which ensures peak communication with your serial peripheral devices.Designed to provide a durable serial connectivity solution, the Serial ExpressCard is backed by StarTech.com's Lifetime Warranty and free lifetime technical support.