1PC Black RJ45 Splitter Adapter LAN Ethernet Cable 1-4 Way Port Connector Plug 7088393139548 | eBay
Amazon.com: Cable Matters Plug & Play USB to Ethernet Adapter with PXE, MAC Address Clone Support (USB 3.0 to Gigabit Ethernet, Ethernet to USB, Ethernet Adapter for Laptop) Supporting 10/100/1000Mbps in Black :
Platinum™ USB 3.0-to-Gigabit Ethernet Adapter Gray PT-PU3GEA - Best Buy