Industrial 2-Port RS-232 to Ethernet Data Gateway TCP/IP
Serial Ethernet Converter (RS232, RS485, RS422) Industrial Panel Mount, 2 Ports - Pro [USC-HF5122] - $149.00 : Serial Data Communication by U.S. Converters LLC
Rj45 1 To 3 1 To 2 Port Ethernet Cable Splitter Connector Network Adapter Ethernet Socket Extender For Cat 8 Cat 7 Cat 6 Cat 5 - Network Hubs - AliExpress
Rj45 Network 1 To 2 Port Ethernet Adapter Splitter, Rj45 1 Male To 2 Female Lan Ethernet Splitter Adapter Cable Suitable Super - Data Cables - AliExpress
HPE Ethernet 10/25Gb 2-port BCM57414 Adapter | HPE Store US
Amazon.com: LEAGY 2 Ports Network Switch Splitter Selector Hub 2-in 1-Out or 1-in 2-Out 100M : Electronics