Inline RJ45 Cat5 Coupler APC 47136WH, white, for joining two Cat5 network cables

APC 47136WH inline RJ45 Cat5 coupler in white is a passive networking accessory designed to join two Cat5 Ethernet cables reliably. The compact coupler accepts standard RJ45 plugs on both ends and preserves the Cat5 pair wiring to maintain baseline 100 Mbps Ethernet connectivity. Its simple inline form factor allows quick cable extensions or temporary repairs without the need to re-terminate cable ends or replace connectors.

Advantages

The inline coupler provides a tool-free, plug-and-play method to extend or repair Cat5 runs while keeping wire pairing intact. Its small white housing is unobtrusive in home or small office environments and compatible with standard RJ45 patch cables. As a passive device, it requires no power and introduces minimal complexity when joining two Ethernet cables for basic network segments.

Suitable for

• Extending Cat5 cable runs for home networking or small office setups
• Temporary or emergency cable repairs to restore connectivity quickly
• Connecting two patch cables where a single longer cable is not available
• Legacy 100 Mbps Ethernet networks and other applications compatible with Cat5 wiring

Key specifications

• Compatibility: fits standard RJ45 plugs and Cat5 cable wiring
• Performance: preserves Cat5 signal pairing suitable for 100 Mbps Ethernet
• Design: inline, double-ended female RJ45 coupler
• Color and material: white compact plastic housing
• Power: passive device, no electrical power required

How to use

Insert an RJ45 plug from one Cat5 cable into one end of the coupler and insert the RJ45 plug from the second Cat5 cable into the opposite end until each connector clicks into place. Verify the physical fit and test the network connection with a connected device or network tester. If signal issues occur, check cable terminations and ensure both cables meet Cat5 specifications; the coupler does not alter wiring or provide signal boosting.

Usage recommendations

Use the APC inline RJ45 Cat5 coupler for short-term extensions or repairs and avoid using multiple couplers in series for long permanent runs. For gigabit speeds or shielded cabling, consider using components rated for higher categories (Cat5e/Cat6) to ensure full performance. Store and install the coupler in dry, indoor environments to prevent corrosion or damage to contacts.