USB to RS-422/485 Adapter (1.2 m)
UC485
- Converts a USB port to a Legacy RS-422 or RS-485 COM port
- Fast COM Port Transmission – up to 921.6 Kbps
- Package included DB-9 female to terminal block adapter for easy wiring
- Supports Terminal / ECHO mode by mode selector
- All Features
The ATEN UC485 is a high quality industrial adapter designed to instantly add an RS-422/485 port to your PC or laptop via a USB port. The adapter is powered via the USB connection without needing an external power supply.
The UC485 adapter lets you use a single USB connection to create plug-and-play serial transfers without additional cables or complicated device installations. It lets you connect any RS-485 or RS-422 device to your computer's USB port, without experiencing computer lock-ups, I/O or driver problems. It is the ideal solution for connecting industrial devices such as laboratory machines, measuring equipment, automated systems, monitoring devices, and many more – where mission-critical applications are required.
NOTICE
If your Linux kernel is between v2.6.15 ~ v5.4 and your device has a new chipset version, please update the Linux driver
Note: This driver works with 2021 or later chipset version device only.
Use the link below to identify which chipset version your device is
https://eservice.aten.com/eServiceCx/Common/FAQ/view.do?id=18695
Product Comparison
Package Contents
- 1x UC485 USB to RS-422/485 Adapter
- 1x Terminal Adapter
- 1x User Instructions
- Converts a USB port to a Legacy RS-422 or RS-485 COM port
- Fast COM Port Transmission – up to 921.6 Kbps
- Package included DB-9 female to terminal block adapter for easy wiring
- Supports Terminal / ECHO mode by mode selector
- Supports Windows Vista / 7 and above, Mac and Linux
- Plug-and-Play – no power supply needed

| Connectors | |
| USB Port | 1 x USB Type A Male (White) |
| Serial | 1 x DB-9 Male (Silver) |
| Data Rate | Up to 921.6Kbps |
| Cable Length | 1.2m |
| LEDs | Power Status / RS-422 (Orange), RS-485(Green) |
| 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 | 0.09 kg ( 0.2 lb ) |
| Dimensions (L x W x H) | 9.53 x 4.10 x 2.20 cm (3.75 x 1.61 x 0.87 in.) |
| Note | For some of rack mount products, please note that the standard physical dimensions of WxDxH are expressed using a LxWxH format. |
Datasheet
uc485_converter_ds_en.pdf (849.85 KB)User Manual
| File Name | Release Date |
| uc485-user-manual-w.pdf (613.32 KB) | 2022-09-12 |
Quick Start Guide
UC485-USB-to-RS-422-485-Adapter-qsg.pdf (1.06 MB)CAD Drawing
UC485-ASM-V01_WEB-20170706.pdf (42.87 KB)Software & Drivers
| ОS | Description | Ver. | Release Date | File Name |
| Linux Software & Driver | ||||
| Linux | v3.0 | 2022-08-05 | uc485_linux_GC_v3.0.zip | |
| Mac Software | ||||
| MacOS | Mac OS X 11 Big Sur | v1.7.0 | 2021-08-19 | uc485_mac_setup_v1.7.0.zip |
| MacOS | Mac OS X 10.13 | V1.6.3 | 2018-09-25 | aten_uc485_v1.6.3.zip |
| Windows Software & Driver | ||||
| Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10 | Software Upgrade | v1.0.088 | 2021-08-06 | uc485_windriver_v1.0.088.zip |
| Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10 | Software Upgrade | v1.0.087 | 2021-03-09 | uc485_windriver_v1.0.087.zip |
| Windows 8, Windows 10, Windows 8.1, Windows 7, Windows Vista | Software Upgrade | V1.0.086 | 2020-10-20 | uc485_windriver_v1.0.086.zip |
| Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10 | Software Upgrade | v1.0.085 | 2018-03-01 | uc485_windriver_v1.0.085.zip |
| Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows XP | Software Upgrade | v1.0.083 | 2017-11-08 | uc485_windriver_v1.0.083.zip |
Compatible Products View All
Note :
All products listed above have been verified for full compatibility with their intended use, where applicable (e.g., keyboard/video/mouse compatibility with KVM switches and extenders).
For any further functionality inquiries, please visit the Support Center for assistance.
Relevant Products View All
UC485
ATEN KVM over IP Solutions Online Trial
PRODUCT ADDED TO CART

