Add a Null Modem DB9 RS-232 serial port to a desktop/laptop using a USB-A port - DB9 screws pre-installed; DB9 Nuts included for device/cable compatibility - Resolve DCE/DTE conflicts without cross-wired cables/adapters; Rugged TPE construction; level-4 ESD protection; Copper shielding; Operating temp -40 C to 80 C - Transmit/Receive LED indicators; USB LED shows successful enumeration - Windows/macOS/Linux; 10ft/3m Cable; Max Baud 115.2Kbps; 128 Byte RX; 256 Byte TX FIFO; FTDI FT232R Chipset