The USB_RS232 cables are a family of USB to RS232 levels serial UART converter cables incorporatingFTDI’s FT232RQ USB to serial UART interface IC device which handles all the USB signalling and protocols. The cables provide a fast, simple way to connect devices with a RS232 level serial UART interface to USB.

Each USB-RS232 cable contains a small internal electronic circuit board, utilising the FT232R, which is encapsulated into the USB connector end of the cable. The integrated electronics also include the RS232 level shifter plus Tx and Rx

LEDs which give a visual indication of traffic on the cable (if transparent USB connector specified). The other end of the cable is bare, tinned wire ended connections by default, but can be customised using different connectors to support various applications.

Cables are FCC, CE, RoHS compliant.

The US232R-10 is FTDI's premium USB to RS232 evaluation cable which can be used for testing the functionality of the FT232R device and drivers prior to design-in.
The electronics, including the FT232RQ chip are housed in an attractive glossy white enclosure with blue, side-lit LED TX and RX traffic indicators. A matching white 10 cm USB cable uses gold plated USB and DB9 connectors.
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The US232R-10 uses an enhanced RS232 level converter and is capable of communication rates from 300 Baud to 1M Baud. The US232R-10 is RoHS compliant and is CE and FCC approved.

The US232R-100 is FTDI's premium USB to RS232 evaluation cable which can be used for testing the functionality of the FT232R device and drivers prior to design-in. The electronics, including the FT232RQ chip are housed in an attractive glossy white enclosure with blue, side-lit LED Tx and Rx traffic indicators. A matching white 1m USB cable uses gold plated USB and DB9 connectors.


The US232R-100 uses an enhanced RS232 level converter and is capable of communication rates from 300 Baud to 1M Baud.
The US232R-100 is fully RoHS compliant and is CE and FCC approved.

The US232R-500 is FTDI's premium USB to RS232 evaluation cable which can be used for testing the functionality of the FT232R device and drivers prior to design-in.
The electronics, including the FT232RL chip are housed in an attractive glossy white enclosure with blue, side-lit LED TX and RX traffic indicators. A matching white 5m USB cable uses gold plated USB and DB9 connectors.
The US232R-500 evaluation cable is supplied in bulk packing.
The US232R-500 uses an enhanced RS232 level converter and is capable of communication rates from 300 Baud to 1M Baud.

The US232R-500 is fully RoHS compliant and is CE and FCC approved.

The UT232R-200 is FTDI's premium USB to RS232 evaluation cable which can be used for testing the functionality of the FT232R device and drivers prior to design-in.
The electronics, including the FT232RQ chip are housed in an attractive glossy white. A matching white 2m USB cable uses gold plated USB and DB9 connectors.
The UT232R-200 evaluation cable is uses thumb screws on the DB9 connector to allow for locking the connector to its mating half.
The UT232R-200 uses an enhanced RS232 level converter and is capable of communication rates from 300 baud to 250K baud.
The UT232R-200 is fully RoHS compliant and is CE and FCC approved.

The UT232R-500 is FTDI's premium USB to RS232 evaluation cable which can be used for testing the functionality of the FT232R device and drivers prior to design-in.
The electronics, including the FT232RQ chip are housed in an attractive glossy white. A matching white 5m USB cable uses gold plated USB and DB9 connectors.
The UT232R-500 evaluation cable is uses thumb screws on the DB9 connector to allow for locking the connector to its mating half.
The UT232R-500 uses an enhanced RS232 level converter and is capable of communication rates from 300 baud to 250K baud.
The UT232R-500 is fully RoHS compliant and is CE and FCC approved.

The UC232R-10 'ChiPi' is the economy version of FTDI's USB to RS232 converter cable range. It also serves as an evaluation cable for the FT232R. It utilises the minimum number of components required for a basic USB - RS232 converter designed using the FT232RL. Using the FT232R chip combined with an RS232 level converter and a few capacitors, the UC232R-10 'ChiPi' is a CE and FCC approved product which is one of the simplest USB - RS232 solutions around.
Using a standard DB9 connector and powered from the USB port, the UC232R-10 'ChiPi' converter can be used with FTDI's VCP drivers to provide a COM port on a PC which is capable of communication rates with RS232 devices from 300 baud up to 230kBaud.
This version of the UC232R-10 is supplied with a nicely sculpted matte white plastic plastic enclosure fitted, which covers the electronics inside. A 10cm USB cable is fitted.
The UC232R-10 is fully RoHS compliant and is supplied loose packed in an anti-static bag.

The UC232R 'ChiPi' module is a basic minimum component USB - RS232 converter. Using the FT232R with an RS232 level converter and a few additional components, the UC232R is a CE and FCC approved module that is one of the simplest USB - RS232 solutions around.

Using a standard DB9 connector and powered from the USB port, the ChiPi can be used with the VCP drivers to provide a COM port on a PC which is capable of communication rates with RS232 devices from 300 baud up to 230kBaud.
This version of the UC232R-10-NE is supplied without the white plastic enclosure which covers the electronics fitted. This allows engineers access to the FT232RL chip for test and evaluation purposes. This also allows for the possibility of customisation of the cable.
The UC232R-10-NE is fully RoHS compliant and is supplied loose packed in an anti-static bag.

Note that this series is now under EOL and is not recommended for new designs
If there is any demand, please send in your enquiry for special support consideration.
For more information, please click here to contact us.

US232B L/C Features a full set of RS-232 modem data and control signals (TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, and GND) on it's PC compatible DB9 male connector. US232B/LC has an internal 128 byte transmit buffer FIFO and a 384 byte receive buffer FIFO. It supports RS232 data transfer rates of up to 500K bps. No external power supply is required as US232B/LC takes it's power from the USB bus.

US232B L/C comes complete with drivers for Microsoft Windows '98, ME, 2000, XP and Server 2003. Drivers are also available for Apple OS-8, OS-9 and OS-X as well as Linux.

Note that this series is now under EOL and is not recommended for new designs If there is any demand, please send in your enquiry for special support consideration.

For more information, please click here to contact us.

The US232B evaluation cable can be used for testing the functionality of the device and drivers prior to design-in. The electronics are housed in an attractive translucent blue enclosure with a matching 1m clear translucent cable.

The US232B evaluation cable replaces our older FT8U232AM evaluation cable with a new version complete with a 1m long tethered USB cable. The US232B is packaged as a compact USB <=> RS232 cable in an attractive enclosure and uses the enhanced Sipex SP213EHCA as it's RS232 level converter so is now able to support RS232 Baud rates of up to 460k Baud. The US232B is now available through the FTDI Sales Network in Europe, USA and Japan.
For those FTDI customers who wish to package their own USB design in an attractive enclosure, the USB cable, enclosure and DB9 connector are available as a set (without electronics). Contact FTDI Sales if you are interested.

For manufacturers who are interested in making this product for themselves either with our enclosure or one of their own design, we can supply you with the US232B reference design free of charge. This consists of schematics, bill of materials and the PCB design in Gerber format.

The following reference downloads are available: