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
Mini Unmanaged 2x 10/100/1000Base-T RJ45 to 1x 1000Base-X SFP Slot Gigabit Ethernet Media Converter
HGW-2402A-PSE - 24x RJ45 + 2x SFP ports Gigabit Ethernet PoE Industrial fiber switch 480W total power, DIN rail mount, -40 to +75 Celsius
Cisco Business CBS350-8MP-2X Ethernet Switch CBS350-8MP-2X-NA - VoIP Supply
2 x Ethernet RJ45 3 Way Network Cable Splitter for Computer | eBay
NovaStar H Series 16x Ethernet Output Port and 2x Optical Ports - Olympian LED
logic controller, Modicon M251, 2x Ethernet | Schneider Electric Singapore
DELOCK 65177: RJ45 port doubler 1x plug -> 2x socket 2x Ethernet at reichelt elektronik
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
NICGIGA 6 Port 2.5G Ethernet Switch with 4X 2500Mbps + 2X 10G SFP Upli
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
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