Fiber Optic Sc Socket With Dual Cat5e Rj45 Ethernet Module Wall Panel White Color - Electrical Socket & Plugs Adaptors - AliExpress
Legrand Plastic CAT6 Ethernet Wall Jack in the Audio & Video Wall Jacks department at Lowes.com
Amazon.com: Cable Matters 2-Pack 2-Port Ethernet Wall Plate, Cat6 Wall Plate / Cat5 Ethernet Wall Outlet in White with White Ethernet Keystone Jack : Electronics
networking - Connect two ethernet sockets to each other - Super User