4 Port Gigabit PoE Passthrough Switch Ethernet Extender Up to 100/1000Mbps σ U8T | eBay
4-Port Managed Industrial Gigabit Ethernet Switch, DIN Mount | Eaton
Amazon.com: Industrial 4-Port Gigabit Ethernet Switch DIN-Rail 4 Port RJ45 10/100/1000Mbps Unmanaged Switch DIN Rail Mountable Hardened 6 Ports Ethernet Fiber Switch with 2 SFP Fiber Ports : Electronics
Outdoor Waterproof 4-Port Gigabit PoE Switch with 4 Port PoE+@78W + 1000Mbps Uplink Port, 5 Port IEEE802.3af/at Power Over Ethernet Switch Unmanaged with VLAN Function, Plug & Play - Newegg.com
Amazon.com: Mini Industrial 4 Port 10/100/1000Mbps Gigabit Ethernet Switch with SFP Din Rail/Wall-Mount 10/100/1000BASE-T RJ45 + 1 100/1000FX (SFP) Support 12-48V DC 10Gbps Switching Capacity : Electronics
Black Box Gigabit Ethernet Extreme Temperature Poe Switch(4)10/100/1000-mbps Copper Rj45 Poe,(1)100/1000-mbps Sfp,gsa,taa (LIE401A) | OfficeCrave.com
4-Port Full Gigabit PoE Switch with 1 GE & SFP Uplink, Support POE Ext | LINOVISION US Store
Loocam 5 Port Gigabit PoE Switch - 4 Port PoE+ @ 65W and 1 Uplink Port | Loocam
TP-LINK 8-Port Gigabit Easy Smart Switch with 4-Port PoE
4-Port Managed Industrial Gigabit Ethernet Switch, -40° to 75°C, DIN | Eaton
1000Mbps 4 Port RJ45 to 2 Fiber Gigabit Ethernet Optical Switch - China Ethernet Optical Switch, Gigabit Ethernet Optical Switch | Made-in-China.com