4-Port Gigabit Industrial Media Converter with 2x 10/100/1000 Mbps RJ45 ports and 2x 100/1000 Mbps SFP (Dual Speed) ports, also known as Switch used, operating modes via DIP switches, MDI / MDI-X on all RJ45 ports, rail mounting, optimized latency behavior, extended temperature range, power supply +12 to +57 VDC, power supply not included, fanless metal housing