ORING Rack-Mount Serial Device Server Model/Series Description RDS-3086G 8 x RS232/422/485 secure serial ports, 4 x 10/100/1000Base-T(X) Ethernet copper ports and 2×100/1000Base-X SFP socket RDS-3166G 16 x RS232/422/485 secure serial ports, 4 x 10/100/1000Base-T(X) Ethernet copper ports and 2×100/1000Base-X SFP socket