RJ45 Splitter Socket LAN Ethernet Connector 2 3 4 Port Network Extender Adapter Cable Gigabit Interface Male to Female - AliExpress
Amazon.com: Cable Matters Plug & Play USB C to Ethernet Adapter with PXE, MAC Address Clone (Thunderbolt to Ethernet Adapter, Gigabit Ethernet to USB C) in Black - Compatible with MacBook Pro,