DIGITUS by ASSMANN Shop | Consolidation Point Box for 4x RJ45 Keystones
J1900 Pfsense Mini PC Firewall Router 4X RJ45 Gigabit Ethernet Nic Fanless Barebone System Mini Computers - China Industrial Computer and Desktop Computer price | Made-in-China.com
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
Amazon.com: Euqvos for Intel X710-T4 PCIe Ethernet Converged Network Adapter 10 Gigabit Ethernet Server NIC 4X RJ45 Ports Intel XL710BM1 Chip LAN Card Support Windows/Linux/Ubuntu/Freebsd : Electronics
Data module (4x RJ45) | HARTING Technology Group
HGW-401S - 4x RJ45 +1x SFP ports Gigabit Ethernet Industrial fiber switch, DIN rail mount, -40 to +75 Celsius