Industrial 4-Port RS-232 to USB 2.0 High Speed Converter with Surge & Isolation

The UTS-404A-SI is an Isolation and Surge Protection 4-Port RS-232 to USB serial adapter that is designed for PC, thin client, or server to provide instant COM port expansion via the Universal Serial Bus (USB). The UTS-404 provides the scalability toquickly adapt to new USB technologies. Multiple modules can be added to a single USB interface allowing you to add RS232 connectivity as needed. Complete product line offers many choices help you to expand and make your network grow with your requirements.


With the USB Plug-and-Play feature, simply plug in, follow the instructions of Install Wizard, then you are done. You don¦t have to deal with Card Slots, I/O address, IRQ jumpers, DMA and others when you are connecting the devices. The System will recognize the device and install the drivers automatically. The UTS-404 is an ideal solution for your expanding applications.

  • Provides 4 RS232 Serial Ports over USB Port
  • Provides 4 DSUB-9 Connectors
  • Baud Rate from 300 bps to 921.6Kbps
  • Supports 7,8 Data Bits
  • Odd, Even, Mark, Space, or None parity mode
  • Supports 1, or 2 Stop Bits
  • Provides 2,500Vrms Optical Isolation*
  • Built-in Bi-direction Surge Protection Circuits*
  • Supports USB Bus Power
  • DC Jack for Optional DC 5V Power Input
  • UTS-404A-SI
  • USB Cable
  • External Power Adapter with Cable
  • Quick Start Guide
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