Overview:ads 4 External USB (Universal Serial Bus) 2.0 & 1 internal USB (Universal Serial Bus) 2.0 ports into your system PCI Express throughput rates up to 400 Mbps Supports 2 UART serial port Buld in 16C550 compatible UART with 16 byte transmit-receive FIFOConnectors: 2 9 pins serial connectors Comes with a software CDSpecification: Weight Approx:51.6g Size Approx:9.4 x 12 x 2.1