USB to RS232 Serial Port Adapter Cable SKU: PZSRS232-A

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With the continuous development of PC industry, USB interface is gradually replacing the old industrial low-speed PC interface, which makes DB9 serial connection more difficult to access the new computer system. But in the actual industrial environment, there are still many important devices that need to use RS232 interface.

The USB2.0 to RS232 serial port product is an enhanced universal asynchronous transceiver transmission standard product. The USB interface fully conforms to the full speed USB 2.0 specification, supports full speed data transmission rate, and the serial port conforms to the RS232 standard interface. It provides us with an external plug and play RS-232 serial port, which is connected to the computer by connecting the USB interface to the DB9 serial port, thus allowing you to release the existing serial port, And easily use the adapter with the serial port. It can be used for RS232 serial port devices such as cash register, LED display screen, CNC machine tools, industrial machines, industrial instruments, bar code printers, etc., to realize the connection between computers and various serial port devices.


  • Adopt industrial grade conductor structure, aluminum foil and 80B tinned copper braid double shielding, gold-plated interface anti-oxidation and corrosion resistance, environmental protection PVC outer cover is easy to curl, anti-winding and tensile;
  • Built-in PL2303GT chip ensures stable signal transmission and normal use in complex electromagnetic environment without interference;
  • The converter is equipped with zero-delay automatic transceiver conversion, which supports super large data transceiver buffer function to ensure high-speed data transmission without delay and provide reliable connection for communication;
  • Automatic control of data flow direction through I/O circuit can easily realize mode conversion, with circuit integrated ESD protection, support handshaking protocol control, and can automatically detect the baud rate of serial port signal;
  • This product has USB bus self-power supply, no power supply, plug and play, to achieve better docking.


Media: PL2303GT.pdf





Media:PZSRS232-A_Android SDK.rar

Interface and Signal



  • Operating temperature: - 40 celsius degree to 85 celsius degree
  • Working Voltage: 5V
  • Working Current: 200mA
  • Chipset: PL2303GT
  • Baud Rate: 300bps to 1000000bps
  • Circuit Integrated ESD Protection: ± 15KV IEC1000-4-2 air gap discharge; ± 8KV IEC1000-4-2 contact discharge
  • Tensile Test: 20 KG
  • Material: epoxy glass fiber double-sided board
  • Wire Material: aluminum foil and 80B tinned copper
  • Color: transparent green
  • Cable Length: 1.8m
  • Supported Systems: Android SDK, Linux, Mac, Windows