PS5712TG Gigabit Power Over Ethernet Splitter 10/100/1000Mpbs RJ45 Support IEEE802.3 Af/At(30W) Poe Splitter - AliExpress
LPJ4112CNL 10/100 Base-T Without Led Single Port Rectifier Bridge POE RJ45 10 Pin Connector
Cat 5e Quick Connect RJ45 Keystone Insert, White, 10-Pack | Keystone Inserts | Data Connectivity | Audio/Visual
Amazon.com: USB2.0 Male to RJ45 Male CAT5 Serial Console Flat Cable for Routers, Connects USB from Laptop to Console Port, No Adapters Needed, 10/8/7 Auto Install Drivers : Electronics
2x6 ports 10G RJ45 Jack integrated magnetics from Ingketech on Tindie