2x 10/100 Mbps RJ-45 or 2x 100/1000 Mbps SFP slot (SFP version)

Industrial 4-Port Serial Device Server, DB9(M), RS-232/422/485, dual power inputs

Industrial 4-Port Serial Device Server, Terminal Block, RS-232/422/485, 3KV Isolation, dual pwr

Industrial 4-Port Serial Device Server, Terminal Block, RS-232/422/485, dual power input