Amazon.com: Mini Industrial Switch 10 Ports Gigabit Switch Hardened 10 Port RJ45 10/100/1000Mbps Ethernet Switch Din Rail Mount Outdoor Ethernet Switch, Unmanaged Network Switch (-40 to 176°F) with 12-48V DC : Electronics
Tripp Lite 16-Port 10/100/1000 Mbps 1U Rack-Mount/Desktop Gigabit Ethernet Unmanaged Switch with PoE+, 230W, Metal - NG16POE - Modular Switches - CDW.com
IES3110-24TF, 24-Port Gigabit Ethernet L2+ Managed Industrial Switch, 24 x 10/100/1000BASE-T, with 4 x 1Gb Combo, -40 to 75°C Operating Temperature - FS.com Europe
24-Port CableShare 10/100 Fast Ethernet Switch – Dualcomm