Koper Ethernet-transceiver CBO ET4201-RJ45 1Gbps RJ45-module

The Copper Ethernet Transceiver CBO ET4201-RJ45 1Gbps RJ45 module is a hot-pluggable copper SFP-style transceiver that provides 1 Gbps full-duplex Ethernet connectivity over standard Cat5e/Cat6 cabling via an RJ45 interface. Designed for network equipment such as switches, routers and media converters that require a copper uplink, this compact module delivers reliable Gigabit links for access, aggregation and edge deployments while simplifying installation and replacement on live systems.

Advantages

This transceiver offers plug-and-play operation and hot-swap capability for minimal downtime during upgrades or maintenance. The RJ45 interface supports standard twisted-pair copper cables and auto-negotiation for 10/100/1000 Mbps operation, enabling compatibility with a wide range of network devices. Its compact form factor conserves port density on equipment while providing the flexibility of a field-replaceable uplink module.

Suitable for

Key specifications

How to use

Insert the module into a compatible SFP-sized port on the target switch, router or media converter until it clicks into place. Connect a suitable RJ45 copper cable between the module and the remote Ethernet device. The module supports auto-negotiation; confirm link speed and duplex settings on connected devices if manual configuration is required. To remove, power down or disable the port as recommended by the equipment vendor, then press the release tab and pull the module straight out to avoid damaging the port.

Recommendations

Use high-quality Cat5e or Cat6 patch cords for stable 1 Gbps operation, keep cable runs within recommended lengths to maintain signal integrity, and follow the host equipment vendor’s guidelines for hot-swapping to prevent configuration or link issues.