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USB to RS232 Driver | USB Serial Driver Downloads and Tools

Driver manufacturer Chip model File size Remarks
FTDI based adapters FT232RL 20.6MB Recommended
Silicon Labs based adapters CP2102 33.9MB Recommended
Prolific based adapters PL2303HX 7.95MB Not recommended
WCH (Nanjing Qinheng Microelectronics) based adapters CH3xx / CH9xx   Not recommended

Introduction to USB to Serial Drivers

USB to serial drivers are essential software components that enable seamless communication between a computer and a serial device connected via a USB-to-serial adapter. These drivers act as a bridge, allowing the computer to recognize and interact with the serial device, facilitating efficient data transfer and control. Whether you're connecting a modem, printer, or any other serial device, having the right USB to serial driver installed on your computer is crucial for ensuring smooth and reliable operation.

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Compatibility and System Requirements

USB to serial drivers are designed to be compatible with a wide range of operating systems, including Windows 11, Windows 10 Windows 8, Windows 7, Windows Server, and Windows CE. This broad compatibility ensures that users can connect their serial devices to both modern and legacy systems without any issues. Before installing a driver, it's essential to verify that your system meets the necessary requirements. Typically, these include a compatible operating system, an available USB port, and the specific serial device you intend to use. Ensuring these prerequisites are met will help in achieving optimal performance and functionality.

Key Features and Specifications

USB to serial drivers come packed with several key features and specifications that enhance their usability and performance. These drivers support multiple operating systems, including Windows 10, Windows 7, and Windows Server, making them versatile for various environments. They are compatible with a range of devices, from laptops to desktop computers, and offer high-speed data transfer rates, typically up to 921.6 kbps. Additionally, they support multiple serial ports such as COM1, COM2, COM3, and COM4, and feature plug-and-play installation, eliminating the need for manual configuration. This makes them ideal for connecting various serial devices, including modems, printers, and scanners.

Installation and Troubleshooting

Installing a USB to serial driver is a straightforward process that can be completed in a few simple steps. First, download the driver from the manufacturer's website or through Windows Update. Next, run the installation program and follow the on-screen prompts. Once the installation is complete, connect the USB-to-serial adapter to your computer and the serial device. The driver should automatically detect the device and install the necessary drivers.

If you encounter any issues during installation or operation, troubleshooting may be required. Common problems include the device not being recognized by the computer, incorrect driver installation, or the serial device not functioning properly. To resolve these issues, check the Device Manager to ensure the driver is installed correctly, restart your computer, and try reinstalling the driver. Additionally, inspect the serial device for any potential issues or malfunctions.

Download and Get Started

To download and get started with a USB to serial driver, follow these simple steps. First, download the drivers from our website or visit the manufacturer's website and search for the appropriate driver for your device. Download the driver and save it to your computer. Run the installation program and follow the prompts to complete the installation. Once installed, connect the USB-to-serial adapter to your computer and the serial device. The driver should automatically detect the device and install the necessary drivers, enabling seamless communication between your computer and the serial device. By following these steps, you can easily download and install a USB to serial driver, ensuring efficient data transfer and control.

Free Useful Tools and Diagnostics Software for Serial Communication
AccessPort 1.37 COM port terminal software for Windows AccessPort137.zip 441KB
Tera Term Terminal software alternative 1 for Windows TeraTerm.zip 7.32MB
Putty Terminal software alternative 2 for Windows Putty.zip 444KB
SerialToIP Simple Terminal Server software providing transparent pipe either in TCP server or TCP client socket mode from TCP/IP to a pre-configured serial port. Implemented in C# SerialToIP.zip 20KB
ZTerm Terminal software for MAC ZTerm.zip 678KB
RS232 Data Logger RS232 Data Logger RS232 Data Logger.zip 780KB
Portmon Monitor Serial and parallel ports Portmon.zip 190KB
Hercules Advanced Multi port (TCP, COM) terminal software HerculesSetup.zip 567KB
Mitty (Multi-Threaded TTY) is an easy to use high performance RS-232 serial terminal program. Mitty.zip 21.9KB
YAT Yat (Yet Another Terminal), Serial COM terminal program YAT.zip 1.04MB
Serial COM Player This software records and plays back serial data from your computer's serial ports Serial Player.zip 160KB
ezTerm TCP terminal software Ezterm.zip 67.50KB
Serial Null Simulates RS232 serial ports connected via virtual null-modem SerialNull.zip 563KB
Serial Remap Remaps all data from one serial port to another SerialRemap.zip 375KB
Serial Trace Monitors, displays, logs and analyzes all serial port activity SerialTrace.zip 566KB
SAL232 Serial port analyzer and logger Sal232.zip 262KB
COM Port Stress Test Generates a serial stream of data with random comm. settings Comstresstest.zip 3.34MB
COM Port Data Emulator Emulates a COM port or an Ethernet device, that generates a serial stream of data. The program can create a data flow, wrap it to data packets (RS232, TCP/IP or UDP) and send to a port ComEmulator.zip 3.43MB
RealTerm Advanced Serial terminal capturing, controlling and debugging RealTerm.zip 860KB
Acrylic WiFi The Most Advanced WLAN Scanner Acrylic_WiFi_scanner.zip 4.21MB
RemSerial Virtual COM software for Linux (tested with BF430 and XS1000) remserial.zip 9.13KB

Below are drivers and datasheets for most of our products

Serial RS232, RS485 and RS422
Part no. Description Processor Files Size
XS202 RS232 to RS422 port-powered MAX491 / Philips HEF4093 Datasheet.pdf 155KB
XS201A RS232 to RS485 port-powered MAX485E / Philips74HCT14 Datasheet.pdf 127KB
XS203 RS232 to RS485/422 port-powered   Datasheet.pdf 134KB
XS216 RS232 to RS485/422 Industrial   Datasheet.pdf 145KB
XS503 RS232 to RS485 / RS422 Ext Pwr, Iso   Datasheet.pdf 130KB
AN232ISO RS232 Optical Isolator 3-wire TLP521 / ICL7660 Datasheet.pdf 124KB
XS2112 RS232 Optical Isolator 8-wire   Datasheet.pdf 135KB
XS202 RS232 Repeater MAX491 / Philips HEF4093 Datasheet.pdf 155KB

USB to Serial RS232
Part no. Description Processor Files Size
ANU232Mi USB to RS232 Mini Prolific PL2303 Drivers / Datasheets.zip 4.16MB
XS882 USB to RS232 - Mini PRO FTDI FT232BL Drivers / Datasheets.zip 4.16MB
ANU232STD USB to RS232 Standard Prolific PL2303 Drivers / Datasheets.zip 4.16MB
XS8801 USB to RS232 Professional FTDI FT232BL Drivers / Datasheets.zip 11.0MB
XS880 USB to RS232 Ultimate FTDI FT232BL Drivers / Datasheets.zip 11.0MB
Y-106 USB to 2 x RS232 MosChip MCS7820 Drivers / Datasheets.zip 8.48MB
UMC-104 USB to 4 x RS232 FTDI FT232BL Drivers / Datasheets.zip 11.0MB

USB to Serial RS485 and RS422
Part no. Description Processor Files Size
US485MIO USB to RS485 Mini SilLabs CP2102 Drivers / Datasheets.zip 11.5MB
MWE820A USB to RS485/422 Mini SilLabs CP2102 Drivers / Datasheets.zip 11.5MB
XS885 USB to RS485/422 Mini Indust. FTDI FT232RL Drivers / Datasheets.zip 11.0MB
XS850 USB to RS485 / RS422 Standard Prolific PL2303 Drivers / Datasheets.zip 4.16MB
XS890 USB to RS485/422 Professional FTDI FT232BL Drivers / Datasheets.zip 11.0MB
SN-060519 USB to RS485 Compact Pro FTDI FT232BL Drivers / Datasheets.zip 11.0MB
U485G USB to RS422/485 Isolated FTDI FT232BL Drivers / Datasheets.zip 11.0MB
MWE820B USB to RS232/485/422 Isolated SilLabs CP2102 Drivers / Datasheets.zip 11.5MB

Wireless Serial
Part no. Description Processor Files Size
YSC10U RS232 Wireless RF 1600 FT SP232 / LPC922F / CC1101 Drivers + User Manual.zip 1.46MB
YSC30L RS232/485 Wireless RF 9800 FT SP232 / LPC921F / CC1101 Drivers + User Manual.zip 1.24MB
UCBT232B Bluetooth to Serial Adapter CSR BC04 User manual + Tera Term.zip 8.56MB
UCBT232EXA Bluetooth to Serial Adapter, Industrial CSR BC04 User manual + Tera Term.zip 8.56MB
BL34 External Bluetooth Dongle 100ft Conwise CW6626 Drivers Win 98, 2000, XP.zip 157KB
ES-388 External Bluetooth Dongle 300ft   Drivers XP, Vista (32/64-bit).zip 1.09MB
Bluesoleil v.2.3 Bluetooth admin software. 98/2000/XP/2003, 32-bit. Full Bluesoleil 2.3.zip 27MB
Toshiba BT Stack Bluetooth admin software. XP, Vista, 7, 8, 32/64-bit. 30 day Trial Toshiba BT Stack v91001.zip 77.9MB

Serial over Ethernet
Part no. Description Processor Files Size
XS1000 1 x Serial to Ethernet Server STD IC+ IP210T VCOM + Datasheet, all OS.zip 18.94MB
BF430 1 x Serial to Ethernet Server PRO RDC R1610-G Toolbox.zip 13.7MB
HL-SE02P-V1 2 x Serial to Ethernet Server Dual ARM7 VCOM + User Manual 5.13KB

PCI and PC Cards
Part no. Description Processor Files Size
ANPCI232X2 PCI Serial Card 2 x port Moschip MSC9865 Drivers / Datasheets.zip 3.28MB
PCIEX2P PCI Express Serial 2 x port Moschip MCS9922 Drivers / Datasheets.zip 4.78MB
ANEXPSS1P Serial ExpressCard 1 x port Prolific PL2303 Drivers / Datasheets.zip 4.16MB
ANPCM232 PCMCIA Serial 1 x port Oxford OXCB950 Drivers / Datasheets.zip 1.14MB