Delock Products 65177 Delock RJ45 Port Doubler 1 x RJ45 plug to 2 x RJ45 jack (2 x Ethernet)
1x RJ45 Male To USB 2.0 A Female Socket LAN Network Ethernet Router Plug Adapter | eBay
Ethernet/USB HUB BOX for Raspberry Pi Zero Series, 1x RJ45, 3x USB 2.0 - RobotShop
Amazon.com: SFP Copper RJ45 Transceiver Gigabit Module 10/100/1000Base-T with Gigabit Ethernet Single Mode Dual SC Fiber, Mini 1x 10/100/1000Base-T RJ45 to 1x 1000Base-LX SFP Slot Ethernet Media Converter : Electronics
Vertiv Avocent Cyclade Crossover Cable Serial Adapter RJ45 M to RJ45 F Crossover Cable Serial Adapter Compatible with RJ45 wiring Installation RJ45 M to RJ45 F - Office Depot
PoE Ethernet / USB HUB HAT for Raspberry Pi Zero, 1x RJ45, 3x USB - PiShop.us
Industrial 1x 100M/1G/2.5G/5G/10GBase-T RJ45 to 1x 10GBase-X SFP+ Slot 10Gigabit Ethernet Media Converter - FS.com Europe
Amazon.com: SFP Copper RJ45 Transceiver Gigabit Module 10/100/1000Base-T with Gigabit Ethernet Single Mode Dual SC Fiber, Mini 1x 10/100/1000Base-T RJ45 to 1x 1000Base-LX SFP Slot Ethernet Media Converter : Electronics
Network RJ45 Splitter Cat5e Adapter 1x RJ45 Socket to 2x RJ45 Sockets Shielded Version Connector (2 ports work in the same time)
Buy Basetech ISDN Cable [1x RJ45 8p4c plug - 1x RJ45 8p4c plug] 15.00 m Black | Conrad Electronic
RJI RJ45 coupler PCB 1x RJ45+solder | HARTING Technology Group
Ethernet/USB HUB HAT (B) for Raspberry Pi Series, 1x RJ45, 3x USB 2.0 - RobotShop
Amazon.com: 10G Ethernet Media Converter, 1x 100M/1G/2.5G/5G/10GBase-T RJ45 to 1x 10GBase-X SFP+ Slot,10Gigabit Fiber Ethernet to Copper UTP Converter, AC 100V~240V or DC 5~12V Optional : Electronics
4-in-1 USB-C Hub, USB-C to 3 x USB-A and 1x RJ45 Ethernet LAN Network – CompuCablePlusUSA- Providing Connectivity Solutions