Console Cable USB to RJ45 UGREEN CM204, 3 m, black

The UGREEN CM204 console cable is a 3 m USB-to-RJ45 cable designed to provide a serial console connection between a computer and network equipment with an RJ45 console port. Its black jacket houses the wiring and adapters required for terminal-level communication, enabling direct access for device configuration, firmware updates, and troubleshooting. The cable supports a standard console pinout used by many switches, routers and other network devices that rely on RJ45 console interfaces.

Advantages

The cable provides a reliable, plug-and-play method to connect a USB port on a laptop or PC to an RJ45 console interface without requiring a separate serial adapter. At 3 metres in length it offers flexible reach for rack-mounted equipment while keeping workstations outside of server racks. The construction is intended for regular use in IT environments, offering consistent signal integrity for terminal sessions and stable communication during configuration and diagnostics.

Suitable for

• Configuration and management of network switches and routers with RJ45 console ports
• Firmware updates and device recovery via serial console
• Troubleshooting and monitoring of network appliances in datacentres and server rooms
• Field technicians and network engineers performing on-site device access

Key specifications

• Connector type: USB (computer end) to RJ45 (device end)
• Cable length: 3 metres
• Colour: black
• Function: serial console communication for terminal access
• Compatibility: devices using standard RJ45 console pinout

How to use

Connect the USB end of the UGREEN CM204 cable to an available USB port on your computer and plug the RJ45 connector into the console port of the target device. Launch a terminal emulator (such as PuTTY, Tera Term, or another compatible application), select the appropriate COM port exposed by the operating system, and configure serial parameters to match the device requirements (commonly baud rate, data bits, parity and stop bits). After establishing the session you can enter commands for configuration, monitoring or firmware operations. When finished, close the terminal application and disconnect the cable.

Usage recommendations

For stable communication, verify the device’s required serial settings before connecting and ensure the correct COM port is selected. Avoid excessive bending near the connectors and store the cable coiled without sharp folds to maintain longevity. When using with rack-mounted equipment, route the cable to prevent tension on the console port.