Support for Windows 98, for Windows Me, for Windows 2000, for Windows XP, for MacOS 8.6 or higher.Support USB1.0/1.1 specification, compatible with USB2.0 specification, support full speed transmission mode 12MBPS.Easy implementation of conversion between computer USB interface and universal serial port.Provide fast access to computers without serial ports.Easy installation, no external power supply and physical drive.Suitable for computers or notebooks with USB ports.Item Name: USB to RS232 AdapterShell Material: PlasticUSB Signal: VCC, DATA+, DATA-, GND, FGRS-232 Signal: RX, TX, RTS, CTS, DTR, DSR, DCD, RI, GNDOperation Mode: Asynchronous Work, Point to PointBaud Rate: 300-115200bps (Automatically Detect Serial Port Signal Rate)Transmission Distance: RS-232 Terminal about 15m, USB Port ＜5mInterface: 600W Surge Protection, 1500V Electrostatic ProtectionWorking Temperature: -20℃ to 60℃Storage Temperature: -25℃ to 85℃Humidity: Relative Humidity 5% to 95%Features: Universal, Plug and Play, Portable, Adapter CableNote: Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Package Included:1 x USB to RS232 Adapter