Introduction
The Icron USB 3-2-1 Raven 3104 is an advanced USB 3.1 extender system designed to extend all USB 3.1, 2.0, and 1.1 devices simultaneously up to 100 meters (328 feet) over a single CAT 6a/7 cable. This system utilizes Extreme USB-C technology, making it ideal for various applications including USB 3.1 conferencing cameras, flash drives, hard drives, keyboards, mice, interactive whiteboards, touchscreens, docking stations, USB to video converters, and audio devices. It provides a reliable and robust solution for extending USB connectivity over long distances.
Package Contents
- Icron ICR-3104 Local Extender (LEX) Unit
- Icron ICR-3104 Remote Extender (REX) Unit
- Power Adapter(s)
- USB 3.1 Cable
- Quick Start Guide (not included in this manual)
Setup and Installation
Follow these steps to set up your Icron ICR-3104 Raven USB 3-2-1 Extender System:
- Connect the Local Extender (LEX) to the Host Computer:
Connect one end of the provided USB 3.1 cable to the USB port on the LEX unit and the other end to an available USB 3.1 port on your host computer.
- Connect USB Devices to the Remote Extender (REX):
Connect your USB 3.1, 2.0, or 1.1 devices (e.g., cameras, keyboards, mice, flash drives) to the USB ports on the REX unit.
- Connect LEX and REX with CAT Cable:
Connect a single CAT 6a or CAT 7 Ethernet cable (up to 100 meters / 328 feet) between the "Link" ports on both the LEX and REX units. Ensure the cable is properly terminated and meets the specified category requirements for optimal performance.
- Connect Power Adapters:
Connect the power adapter(s) to the power input jack(s) on both the LEX and REX units, then plug them into a power outlet. The system will power on automatically.

Figure 1: The Icron ICR-3104 Raven USB 3-2-1 Extender System. This image displays two units stacked, showcasing their various ports. The top unit (Local Extender or LEX) has a LAN port, a Link port, a USB 3.1 Type-B port for host connection, and a 24V 1A power input. The bottom unit (Remote Extender or REX) features a LAN port, a Link port, multiple USB 3.1 Type-A ports for connecting peripheral devices, and a 24V 2.71A power input. Both units are silver-colored with heat dissipation fins on the sides.
Operating Instructions
The Icron ICR-3104 system is designed for plug-and-play operation. Once all connections are made and power is supplied, the system will automatically detect and extend the connected USB devices.
- Automatic Device Detection: The system automatically detects and configures connected USB 3.1, 2.0, and 1.1 devices.
- Full Bandwidth: The extender supports the full bandwidth of USB 3.1 Gen 1 (5 Gbps) over the extended distance.
- LED Indicators: Observe the LED indicators on the units for connection status. A solid 'Link' LED typically indicates a successful connection between the LEX and REX units.
Maintenance
The Icron ICR-3104 Raven USB 3-2-1 Extender System requires minimal maintenance. Follow these guidelines to ensure its longevity and optimal performance:
- Cleaning: Use a soft, dry cloth to clean the exterior of the units. Do not use liquid cleaners or aerosols, as they may damage the components.
- Environment: Operate the system in a clean, dry environment, away from direct sunlight, excessive heat, and moisture.
- Ventilation: Ensure that the ventilation openings on the units are not blocked to prevent overheating.
- No User-Serviceable Parts: Do not attempt to open or repair the units. Refer all servicing to qualified service personnel.
Troubleshooting
If you encounter issues with your Icron ICR-3104 system, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to units. | Power adapters not connected or faulty outlet. | Ensure power adapters are securely connected to both units and a working power outlet. Check the power outlet with another device. |
| USB devices not detected. | Incorrect cable connection, faulty CAT cable, or incompatible device. |
|
| Intermittent connection or slow performance. | Poor quality CAT cable, excessive cable length, or electromagnetic interference. |
|
If the problem persists after trying these steps, please contact Icron technical support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Model | ICR-3104 |
| Brand | Icron |
| USB Standard Support | USB 3.1 Gen 1 (5 Gbps), USB 2.0, USB 1.1 |
| Extension Distance | Up to 100 meters (328 feet) |
| Extension Cable Type | CAT 6a or CAT 7 Ethernet cable |
| Hardware Interface | USB, Ethernet |
| Special Feature | Plug and Play |
| Compatible Devices | USB 3.1 conferencing cameras, flash drives, hard drives, keyboards, mice, interactive whiteboards, touchscreens, docking stations, USB to video converters, audio devices, and other USB 3, 2, and 1 devices. |
| Product Dimensions | 91 x 54 x 13 inches |
| Item Weight | 7.07 pounds |
| Manufacturer | Icron |
| First Available Date | August 12, 2020 |
Warranty and Support
Icron products are designed for reliability and performance. For specific warranty information regarding your ICR-3104 Raven USB 3-2-1 Extender System, please refer to the warranty card included with your product or visit the official Icron website. Warranty terms typically cover defects in materials and workmanship under normal use.
For technical support, troubleshooting assistance, or to inquire about repairs, please contact Icron's customer support. Contact information can usually be found on the manufacturer's website or in the product packaging. When contacting support, please have your product model number (ICR-3104) and serial number ready.
Online Resources: For the latest drivers, firmware updates, and additional documentation, please visit the official Icron support page.





