Amazon.com: Cable Matters USB to 4-Port Gigabit Ethernet Switch for Network Sharing with TV, Laptop, Gaming Console (USB Ethernet Splitter, USB Network Switch, USB to Ethernet Adapter, USB Gigabit Switch) : Electronics
USB Power Only Cable with Switch - A/MicroB : ID 2379 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits