Usb to RS232 DB25


FTDI Chip Usb to RS232 25 Pin DB25 Male Connector Serial Adapter Cable CNC Controls Programming Cable Compatible C-232R US-232R


6ft industrial grade USB to RS232(DB25 Male) adapter cable. It is an ideal solution for computers to communicate with many serial devices directly through USB ports such as CNC, PLC, plotter, modem, Scanner, etc

This cable is designed to make connections between USB ports and serial devices(RS232), NOT for parallel printers or other devices based on parallel protocol (IEEE-1284), even though both have DB25 connectors. It is a USB to Serial cable with Software Handshaking using only three signals: TXD(Pin2), RXD(pin3), and GND(pin7). Check your device setup before purchase.

Works with USB 1.1 & 2.0 Host and Hub ports. Powered directly by USB port, no external power adapter required.

Industry Standard FTDI chip set & device drivers to ensure maximum compatibility and superior reliability for industrial application

Heavy duty metal DB25 connector with locking screws on one end, Plastic USB housing on the other end of the cable with data traffic

Use on my R2E3 mill and seems to work ok. Had to adjust Windows XP a bit.

Connected this to a new Windows 10 business desktop to run an old Anagraph plotter

Works very well with my amateur radio equipment.

It is a USB to RS-232 interface adapter cable. No external power supply is needed. Compatible with USB and RS-232 standards. It is capable of performing the conversion from a single-ended USB signal into a UART signal of RS-232. DB25 male connector is used for connection from the RS-232 interface. The unique I/O circuit of the internal zero delay auto transceiver contained in the converter controls the data stream direction automatically. The cable is plug-and-play for windows7, 8, and 10. U.S based technical support, please contact the seller if you are not sure this cable works or not for your devices.

Drivers are available which allow FTDI devices to work with the following operating systems:

  • Windows 10
  • Windows 8.1 x64
  • Windows 8
  • Windows 8 x64
  • Windows Server2012
  • Windows Server 2008 R2
  • Windows 7
  • Windows 7 x64
  • Windows Server 2008
  • Windows Server 2008 x64
  • Windows Vista
  • Windows Vista x64
  • Windows Server 2003
  • Windows Server 2003 x64
  • Windows XP
  • Windows XP x64
  • Windows ME
  • Windows 98
  • Linux
  • Mac OS X
  • Mac OS 9
  • Mac OS 8
  • Windows CE.NET (Version 4.2 and greater)
  • Android
  • Windows RT

Support for WinCE7.0
Initial functional testing conducted by FTDI has shown that the FTDI drivers function as expected on Windows CE 7.0

Support for older versions of Windows Desktop

NOTE: Microsoft has ended support for certifying XP and VISTA through their WHCK test program. As such current builds will still work on XP and VISTA but are not Microsoft certified.

Differences in Driver API

For most of these operating systems, two types of drivers are available: Virtual COM Port (VCP) drivers and direct (D2XX) drivers. The VCP driver emulates a standard PC serial port such that the USB device may be communicated with as a standard RS232 device. The D2XX driver allows direct access to a USB device via a DLL interface.

To locate the drivers you want to install for a device, select which of the driver types you wish to use (VCP or D2XX) and then locate the appropriate operating systems.  Except for Windows 98 and Windows ME, all devices are supported in each driver package.

If a VCP driver is required for Android please refer to the following application note: TN 132 Adding FTDI Devices VCP Driver Support to Android


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