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2 Year Warranty

USB-4604BM-BE 4-port RS-232/422/485 Serial to USB Converter

  • Full compliance with USB V1.1 and V2.0 specifications.
  • RS-232/422/485 port supported
  • Transmission speed up to 921.6 kbps
  • Automatic RS-485 data flow control
  • Bus-powered; no need for external power supply
  • Plug & Play installation
  • No additional IRQs or I/O ports required
  • Hot swap function supported
Certifications CE
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More Description

USB-4604 series allows PC users to connect a serial device to a system that use a USB interface. To attach the USB-4604B/4604BM to a PC, you don’t need to open the chassis or power down your PC. Instantly get extra high-speed RS-232/422/485 ports. The power is derived from the USB port, so there are no power adapters to deal with. This makes the USB-4604B/4604BM especially suitable for modems, printers, POS systems and industrial control devices. Supporting USB2.0 high speed, USB-4604B/4604BM features several powerful functions such as high-speed 921.6 kbps transmission, support for various operating systems, independent RS-232/422/485 ports and more. By simply plugging in a USB hub, USB-4604B and USB-4604BM eliminates the configuration issues associated with high-priced, older card solutions. You only have to install the drivers, no need to set cards slots, IRQ addresses, DMA channels, or device addresses. This reduces programming effort

Extended Specifications

Display (B)

  • Interface USB 1.1/2.0

Connector (...)

  • Serial (B) DB9
  • USB (B) Type B


  • Surge Protection line to line 0.5kv; line to ground 0.5kv

Serial Communication

  • Serial Port Number 4
  • Serial Standard RS-232 / RS-422 / RS-485


  • Baud Rate 50 ~ 921.6 Kbps
  • Driver
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