Amazon.com: RJ45 Ethernet Splitter Cable, Sartyee RJ45 Y Splitter Adapter 1 to 3 Port Ethernet Switch Adapter Cable for CAT 5/CAT 6 LAN Ethernet Socket Connector Adapter Cat5 Cat6 Cable - ONE
NETGEAR 5-Port Gigabit Ethernet Unmanaged Switch (GS305) - Home Network Hub, Office Ethernet Splitter, Plug-and-Play, Fanless Metal Housing, Desktop or Wall Mount - NWCA Inc.
TP Link 5 Port Gigabit Ethernet Easy Smart Switch TL SG105E - Office Depot