EtherWAN Hardened Unmanaged 4-Port Gigabit PoE & 1-Port Gigabit RJ45 Ethernet Switch (Horizontal Housing)

This is a hardened, unmanaged PoE Ethernet Switch from EtherWAN in a compact horizontal housing that can be wall or DIN-rail mounted. Four Gigabit PoE

EtherWANs EX42395AT is a hardened unmanaged PoE switch which can be wall or DIN-rail mounted. 4 gigabit PoE ports provide up to 30W output per port

EtherWAN Hardened Unmanaged 4-Port Gigabit PoE & 2-Port Gigabit SFP/RJ45 Combo Ethernet Switch

EX42300 Series - Hardened Unmanaged 4-port 10/100BASE (4 x PoE) +1-port 10/100/1000BASE-T +1-port 1000BASE-X Gigabit Ethernet Switch

Gigabit Ethernet (1000-Mbit/s) Unmanaged 5 Port Enterprise Network Switches for sale

Switches Companies - IFSEC Global Directory

Industrial PoE Networking Solutions

This is my field but am stumped! Any ideas how o extend ethernet over 300m over a single line? - Quora

NETGEAR 24 Port Gigabit Unmanaged Switch JGS524 - Office Depot

Ethernet Connectivity

EX42300 Series - Hardened Unmanaged 4-port 10/100BASE (4 x PoE) +1-port 10/100/1000BASE-T +1-port 1000BASE-X Gigabit Ethernet Switch