USB to RS-232 Adapter (35cm)
UC232A
- Support the RS232 Serial interface
- Full compliance with the USB Specification
- Up to 921.6 Kbps data transfer rate
- Works with cellular phones, PDAs, digital cameras, modems or ISDN terminal adapter


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The UC232A USB-to-RS232 serial port converter is the ideal accessory for laptop and desktop computers that do not have a COM or DB9 serial port. Supporting both PC and Mac systems with baud rates up to 921.6 Kbps for rapid performance, it offers a convenient connectivity solution for industrial automation systems, scientific instruments, point of sale systems, and other specialized industrial and consumer applications.
The UC232A now supports mobile devices as a computing host (Android 3.2 and above). The UC232A SDK is available for download in the Support and Downloads section. To download the mobile demo app from the Google Play store, please click on or scan this QRCode.
NEW !
UC2322/UC2324 2/4-Port USB-to-Serial Hub available now!
NOTICE
If you are updating a Windows operating system to 8 or later, please refer to the UC232A FAQ to ensure compatibility.
Package Contents
- 1x USB-to-Serial Converter
- 1x User Instructions
- Support the RS232 Serial interface
- Full compliance with the USB Specification
- Up to 921.6 Kbps data transfer rate
- Works with cellular phones, PDAs, digital cameras, modems or ISDN terminal adapter
- OS Compatibility: Windows, Mac, Linux

USB-to-Serial Converter
Connectors | |
USB Port | 1 x USB Type A Male (White) |
Serial | 1 x DB-9 Male (Silver) |
Data Rate | Up to 921.6 KBps |
Cable Length | 35cm |
LEDs | Power (Orange) |
Power Mode | Bus Powered |
USB Specification | USB compliant |
Environmental | |
Operating Temperature | 0–40˚C |
Storage Temperature | -20–60˚C |
Humidity | 0–80% RH, Non-condensing |
Physical Properties | |
Housing | Plastic |
Weight | 0.04 kg ( 0.09 lb ) |
Dimensions (L x W x H) | 6.59 x 3.40 x 1.60 cm (2.59 x 1.34 x 0.63 in.) |
Note | For some of rack mount products, please note that the standard physical dimensions of WxDxH are expressed using a LxWxH format. |
User Manual
uc232a_um_w_2017-05-04.pdf (600.5 KB)Quick Start Guides
uc232a_232a1_converter_qsg.pdf (1.07 MB)CAD Drawing
UC232A_A1-ASM-V01_WEB-20180517.pdf (43.03 KB)Software & Drivers
OS | Desc. | Ver. | Release Date | File Name |
Android | Android 3.2 | v1.0.061 | 2016-03-28 | uc232a_android_aten_sdk_v1.0.061.zip |
Linux Software & Driver | ||||
Linux | v2.1 | 2006-12-20 | uc_232a_linux.zip | |
Linux (Red-Hat 7.3) | v1.1 | 2005-01-14 | UC-232A_redhat_7.3.zip | |
Linux (Red-Hat 8) | v1.1 | 2005-01-14 | UC-232A_redhat_8.zip | |
Linux (Red-Hat 9) | v1.1 | 2005-01-14 | UC-232A_redhat_9.zip | |
Mac Software | ||||
MacOS | Mac OS X 10.13 | v1.6.4 | 2018-10-31 | uc232a_mac_setup_v1.6.4.zip |
MacOS | Mac OS X 10.10 | v1.6.1 | 2015-05-13 | uc232a_mac_setup_v1.6.1.zip |
MacOS X | Mac OS X 10.6_10.7_10.8_10.9 | v1.5.3 | 2014-10-16 | uc232a_mac_os_x_10.6_10.7_10.8_10.9.zip |
MacOS | MacOS 10.4 Driver | v1.0 | 2007-05-18 | uc232a_mac10.4.zip |
MacOS 8.6, MacOS 9.x | v1.2 | 2005-01-14 | UC-232A_mac8.6_9.hqx | |
MacOS X | v1.2 | 2005-01-14 | UC-232A_macX.zip | |
Windows Software & Driver | ||||
Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 2012 R2, Windows 2016, Windows 2008 R2 | 32 bits / 64 bits | v1.0.084 | 2018-05-23 | uc232a_windows_setup_v1.0.084.zip |
Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 2012 R2, Windows 2016, Windows 2008 R2 | 32 bits / 64 bits | v1.0.083 | 2017-09-21 | uc232a_windows_setup_v1.0.083.zip |
Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 2012 R2, Windows 2008 R2 | 32 bits / 64 bits | v1.0.082 | 2016-01-27 | uc232a_windows_setup_v1.0.082.zip |
Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 2012 R2, Windows 2008 R2 | 32 bits / 64 bits | v1.0.081 | 2015-05-13 | uc232a_windows_setup_v1.0.081.zip |
Windows XP, Windows Vista, Windows 7, Windows 8 | 32 bits / 64 bits | v1.0.079 | 2015-02-26 | uc232a_windows_setup_v1.0.079.zip |
Windows XP, Windows Vista, Windows 7, Windows 8 | 32 bits / 64 bits | v1.0.078 | 2013-06-21 | uc232a_windows_setup_v1.0.078.zip |
Windows XP, Windows Vista, Windows 7 | 32 bits / 64 bits | v1.0.075 | 2011-03-30 | uc232a_win7_xp_vista_v1.0.075.zip |
Windows Software & Driver-Legacy | ||||
Windows 2000, Windows 98, Windows ME | 32 bits | v2.1 | 2006-12-20 | uc_232a_win.zip |
Windows 95 | v1.3 | 2005-11-14 | UC-232A_win95.zip |