| Product Specifications | |
|---|---|
| Tech Specs | |
| Product Type | USB Serial Converter Cable |
| Host Interface | USB 2.0 |
| Host Connector | USB Type-A |
| Serial Interface | 9-Pin Serial Connector |
| Supported Standards | RS232 / RS485 / RS422 |
| RS232 Data Rate | Up to 115.2Kbps |
| RS485 / RS422 Data Rate | Up to 3Mbps |
| Cable Length | 1.5 Meter |
| Operating System | Windows, Linux |
| Driver Requirement | Manufacturer driver available |
| Special Features | Serial Communication Industrial Control Equipment Configuration |
| Warranty Information | |
| Warranty | N/A |
The UGREEN CM393 (55840) USB to RS232/RS485/RS422 Serial Converter Cable is designed for technicians, engineers and industrial users who need to connect compatible serial communication equipment to a computer through USB. It provides three commonly used serial communication standards in one adapter.
Featuring a USB 2.0 host interface and a 1.5-meter cable, the CM393 is useful for serial device configuration, communication testing, equipment maintenance and industrial automation workflows. Manufacturer-supported drivers are available for Windows and Linux.
Whether you work with industrial controllers, serial instruments or legacy communication devices, the UGREEN CM393 offers a convenient USB connection for compatible serial equipment. Explore the UGREEN CM393 price in Bangladesh at IT Source.
The UGREEN CM393 (55840) is a USB 2.0 serial converter cable designed to support RS232, RS485 and RS422 communication with compatible equipment. It connects to a computer through USB and provides a serial interface for configuration, monitoring and data exchange. The 1.5-meter cable offers convenient reach between a computer and nearby industrial or legacy devices. UGREEN provides Windows and Linux drivers for the exact CM393-55840 model. The adapter is suitable for technicians and engineers who need to communicate with supported serial controllers, instruments and other devices using correctly matched electrical standards, pin assignments and communication settings.
The CM393 supports RS232, RS485 and RS422, making it useful for different serial communication applications without purchasing a separate USB converter for each standard.
Before connecting, identify the required electrical interface and verify the correct pinout and operating configuration. The three standards are not electrically interchangeable.
RS232 support makes the converter useful for compatible serial equipment, including selected industrial instruments, controllers and legacy devices.
Product listings advertise RS232 communication speeds up to 115.2Kbps. Actual performance depends on the connected equipment and communication settings.
RS485 is widely used for industrial communication over differential signal lines. The CM393 provides USB-to-RS485 conversion for compatible equipment and control systems.
Check the device's wiring arrangement, signal polarity, termination and communication protocol before use.
RS422 support enables communication with compatible differential serial devices used in industrial and technical environments.
The connected equipment must use the correct wiring and compatible serial communication settings for reliable operation.
The USB 2.0 interface allows the CM393 to connect to a compatible computer without requiring a built-in legacy serial port.
Once the appropriate driver is installed, supported serial communication software can access the adapter through the operating system's serial device interface.
Product listings for the CM393-55840 advertise serial rates up to 115.2Kbps for RS232 and up to 3Mbps for RS485/RS422.
These are advertised maximum rates, not guaranteed speeds for every device. The equipment, driver and application must support the selected baud rate.
UGREEN provides a Windows driver package specifically identifying the CM393-55840 model. This helps users establish the serial communication interface on supported Windows systems.
Install the manufacturer's appropriate driver when required, then confirm the assigned COM port in the operating system before configuring the serial application.
The manufacturer's download center also lists Linux support for the CM393. This makes the converter relevant for Linux-based maintenance and industrial computing environments.
Driver installation and device naming can vary by Linux distribution and kernel version.
The 1.5-meter cable provides practical reach between a desktop or laptop and nearby industrial equipment, reducing the need to position the computer directly beside the serial port.
Route the cable away from moving machinery and sources of excessive mechanical stress.
The CM393 can be used with compatible industrial controllers and instruments that require RS232, RS485 or RS422 communication for configuration, maintenance or diagnostics.
Compatibility depends on the exact electrical interface, connector wiring and device communication protocol.
Technicians can use the converter with suitable terminal or serial diagnostic software to inspect communication settings, exchange supported commands and troubleshoot connectivity.
Configure the correct baud rate, data bits, parity, stop bits and flow control according to the connected equipment's manual.
The CM393 is designed for RS232, RS485 and RS422 serial communication. It does not provide an Ethernet network interface or a general-purpose TTL UART connection.
Using the wrong electrical standard or wiring may cause communication failure or equipment damage.
The UGREEN CM393 is suitable for industrial technicians, automation engineers, equipment maintenance teams, electronics laboratories and IT professionals who work with compatible serial communication devices. It is especially useful when a modern USB-equipped computer must communicate with equipment requiring RS232, RS485 or RS422.
Choose the UGREEN CM393 if your application requires a USB connection to RS232, RS485 or RS422 equipment and you want one converter that supports all three standards. Check the equipment's electrical interface, connector type, pinout and baud-rate requirements. Confirm that your computer uses a supported Windows or Linux environment and that the manufacturer driver meets your software requirements.
Verify the UGREEN CM393 model number 55840, USB 2.0 host interface, RS232/RS485/RS422 support and 1.5-meter cable length. Check the serial device's pin assignment and required communication settings, and review the manufacturer's Windows or Linux driver availability. Contact IT Source Bangladesh for current pricing, stock availability and warranty information.
Explore the UGREEN CM393 (55840) USB Serial Converter Cable at IT Source Bangladesh for industrial maintenance, serial equipment configuration and technical communication tasks. Its three-standard design and manufacturer-supported drivers make it a practical option for compatible systems. Contact IT Source to confirm the latest price, availability and warranty terms.
Yes. The CM393 (55840) is a three-in-one USB serial converter supporting all three standards. Correct wiring and communication configuration are required.
Yes. UGREEN provides a driver package for the CM393-55840 covering Windows and Linux. Compatibility with a particular operating-system version should be checked before installation.
The CM393 (55840) is listed with a 1.5-meter cable, suitable for connecting a USB-equipped computer to nearby compatible serial equipment.
Check the UGREEN CM393 (55840) USB to RS232/RS485/RS422 Serial Converter Cable price in Bangladesh at IT Source.
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