DELOCK 65177: RJ45 port doubler 1x plug -> 2x socket 2x Ethernet at reichelt elektronik
Amazon.com: Gigabit Ethernet Media Converter, Singlemode Dual LC, 1.25Gb/s 2X 10/100/1000Base-T RJ45 Networks Ethernet to 2X 1000Base-X SFP Fiber Converter with 2X Gigabit SFP 1000Base-LX Transceiver : Electronics
PoE RJ45 Splitter Kit for Ethernet Cable Sharing – Dualcomm
MSW-4204S-AD 2x 10G SFP+ and 4x Gigabit RJ45 EDD switch (Ethernet Demarcation Device) for Metro Ethernet networks w/ full 802.3ah OAM support (NID), SyncEthernet support, AC and DC power inputs
10 Port Industrial Ethernet DIN Rail Switch, 8x Gigabit RJ45 10/100/1000TX PoE 802.3at 30W/port 120W Total Budget, 2x SFP 1000FX
Dual Gigabit Ethernet 5G/4G Mini-Computer Based On Raspberry Pi Compute Module 4 (NOT Included), Metal Case, With Cooling Fan | CM4-DUAL -ETH-4G/5G-BOX
IOCREST M.2 to Dual Port 2.5G Ethernet NIC Network Card M.2 22*80mm size B Key and M Key 2500 Mbps RTL8125B Chipset - AliExpress
NovaStar H Series 16x Ethernet Output Port and 2x Optical Ports - Olympian LED
2X Ethernet Wall Plate with Low Voltage Mounting Bracket,Single 2 Port Cat6 Ethernet Cable Wall Outlet - Walmart.com
Industrial 2x 10/100/1000Base-T RJ45 to 2x 100/1000Base-X SFP Slot Gigabit PoE++ Ethernet Media Converter - FS.com Europe
FC3-LAN, FACET-Card (2x Gbit Ethernet) – fit IoT
StarTech.com 3 Port USB C Hub with Gigabit Ethernet RJ45 GbE Port, 2x USB-A, 1x USB-C, SuperSpeed 10Gbps USB 3.1/3.2 Gen 2 Type C Hub Adapter, USB Bus Powered, Aluminum, Works w/TB3
1pc 2x RJ45 Male to Dual Female Panel Mount Ethernet Lan Network Extension Cable | eBay
Amazon.com: Dual Port Gigabit Ethernet Converged PCI-E x1 Card,2X RJ45 Gigabit Network Interface Controller Adapter,with 82575EB Chipset for Desktops,Work Stations,Servers, with Low Profile Bracket. : Electronics