Hirschmann - SPIDER-SL-20-05T1999999SY9HHHH - Ethernet Switch, Unmanaged, 5 Port, 12 to 24 VDC, Spider III Series - RS
SPIDER-SL-20-04T1M29999SY9HHHH - Switch, Spider III, 5 Ports, Industrial, Fast Ethernet, DIN Rail/Wall, RJ45 x 4, SC x 1: Amazon.com: Industrial & Scientific