RS232 Data Rates: 300bps to 1 Mbps RS422/RS485 Data Rates: 300bps to 10 Mbps FIFO Buffer: 4K byte transfer, 4K byte receiver UART interface support for 7 or 8 data bits, 1 or 2 stop bits and even/odd/mark/space/none, Flow control none, hardware and xon/xoff USB 2.0 High Speed (480 Mbits/sec.) and Full Speed (12 Mbits/sec.) compatible MiniPCIe via USB & USB pin header. Full size Mini PCIe module type combo Isolation voltage: 2500V High common-mode transient immunity: >25 kV/s 500W surge protection and 23KV ESD protection Signal indication: indicator lights for Power (PWR), Send (TXD) and Receive (RXD) Operating Temperature: -40 to +85 degree C