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