RJ45 coupler, ethernet extension adapter network connector for Cat7/Cat6/Cat5e/Cat5 ethernet network cable coupler female to female

Work well:
The couplers are very well made and built tough, and allows you to connect 2 short ethernet cables into reasonable length without purchasing longer ones. It is fully shielded to prevent electrical interference. Plug and play, work well.

Features:
Relatively sturdy and incredibly easy to use.
Thickened PCB board, robust and durable.
These RJ45 couplers are metallic shielded.
Supports POE applications over ethernet patch cables.

Specification:
Color: blue

Package includes:
30 x RJ45 couplers

Notices:
This can not use with a keystone jack.
It is not for a phone cable, but for an ethernet cable.
It is only compatible with RJ45, not compatible with RJ11.
The mention of any related models above is only for purposes of demonstrating compatibility, not for trademarks