Ethernet Splitter 1 To 4 RJ45 LAN Port Internet Cable Adapter Connector Cat5 6 7 | eBay
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Serial Port Splitter - Usage Examples
Serial Port Splitter User Manual - Usage Examples
List of The Best Serial Port Splitters: Software and Hardware Tools
RJ45 Ethernet Splitter Adapter, EEEkit USB to RJ45 Port Dual Female 1 to 2 LAN Ethernet Network Splitter Connector Adapter Support Cat5 Cat5e Cat6 Cat6e Cat7 Ethernet Cable, Black - Walmart.com