StarTech 1-Port Gigabit Network Isolator, Compact In-line RJ45 Ethernet Coupler with 4kV Galvanic Isolation, IP40, DIN Rail Mountable, TAA Compliant

The StarTech 1G-NETWORK-ISOLATOR is an in-line Gigabit Ethernet coupler that provides 4kV galvanic isolation to help prevent ground loops and block stray electrical currents, making it suitable for network, audio, or video installations where connected equipment needs electrical separation.

Recommended For

• IT staff in labs or manufacturing facilities who need to add a passive isolation point to a copper Ethernet link during equipment installation, maintenance, or upgrades.
• Audio or video system owners troubleshooting a ground loop or stray electrical current traveling over a wired Ethernet connection; the isolator can be inserted inline without changing network routing.
• Network technicians connecting compatible 10/100/1000 Mbps Ethernet equipment who want a plug-and-play inline coupler with no separate power supply, software, or driver installation.
• Organizations that need a TAA-compliant Ethernet isolation component for a network installation or equipment-protection workflow.

Real-World Use Scenarios

• When Ethernet-connected audio or video equipment has a suspected ground-loop issue, place the isolator inline between the equipment and the network; separating the conductive paths may reduce ground-loop-related noise, though it will not fix every source of hum.
• In a lab or manufacturing setup where networked equipment may be at different ground potentials, insert the isolator in the Ethernet link to help limit stray current between devices while keeping the connection on the data network.
• During a network maintenance or upgrade in an industrial cabinet, mount the isolator inline on the Ethernet run to add galvanic separation between connected equipment without adding a powered network device.
• When connecting a computer or other compatible device to a wired LAN in a lab, use the isolator as an inline coupler where electrical separation is needed; it requires no drivers or separate power supply.
• If a network link needs protection from stray electrical currents or small surges, install the isolator between the two Ethernet-connected devices; it adds separation in the cable path but should not be treated as a substitute for a dedicated surge-protection plan.

Spec Summary