LOGILINK RJ45 T‑Adapter MP0138 — 1:1 parallel RJ45 coupling, 1x female to 2x female

LOGILINK RJ45 T‑Adapter MP0138 is a passive 1:1 parallel RJ45 coupling that converts one RJ45 female connector into two RJ45 female connectors. The adapter provides a direct physical path for Ethernet patch cables without any electrical conversion, switching or signal processing. The compact T‑shaped body is intended for temporary cable routing, simple network testing or situations where two devices can share a single wired connection path using parallel wiring.

Advantages

The adapter requires no power and is fully passive, making it immediately usable with standard Ethernet patch cables. Its simple 1:1 parallel design preserves the original cable pinout and wiring, so no reconfiguration of connected devices is necessary. The small form factor makes it easy to carry and deploy in patching scenarios, lab tests and ad‑hoc setups where quick physical splitting of a cable is needed.

Suitable for

• Temporary cable routing and ad‑hoc connections in office or lab environments
• Basic continuity checks and simple network troubleshooting
• Connecting low‑speed legacy devices or non‑networked equipment that accept a direct wire mapping
• Situations where two endpoints are intended to share the same physical wiring and wiring plan

When it may not be suitable

The T‑adapter does not perform any signal splitting, switching, or protocol conversion; it simply mirrors the original pinout to two outputs. It is therefore not suitable for creating two independent, full‑speed Ethernet links from a single port or for use with network devices that expect separate, electrically isolated connections. It should not be used where adherence to Ethernet standards, guaranteed bandwidth or collision domain separation is required.

Key specifications

• Connector configuration: 1 x RJ45 female to 2 x RJ45 female (parallel 1:1 wiring)
• Function: Passive mechanical coupling — no active electronics
• Supported wiring: Direct pinout mirroring of connected RJ45 patch cables
• Physical form factor: Compact T‑adapter housing for inline connection
• Typical use: Patch cable splitting, testing and temporary wiring

How to use

Insert an RJ45 patch cable from the network source into the single input female connector of the adapter, then connect additional RJ45 cables to the two female output ports to route the physical wiring to the required endpoints. Ensure all connectors are fully seated. Because the adapter is passive and mirrors the cable pinout, connected devices will share the same cable pairs; verify device compatibility and cabling scheme before applying network traffic. Remove the adapter when it is no longer required to restore the original single cable connection.

What to consider before purchase

• Whether a passive mirror connection suits your topology — it does not create two independent Ethernet links
• Compatibility of connected devices with shared wiring and the potential impact on network performance
• Physical space and connector access where the adapter will be used
• Use only for temporary or testing scenarios unless the wiring method is known to be acceptable for the intended devices

Usage recommendations

Use the LOGILINK RJ45 T‑Adapter MP0138 for temporary routing and basic testing only. Avoid deploying it for production networks that require full Ethernet performance, isolation, or standard compliance. Verify device behaviour with mirrored wiring before transferring important traffic.