D-Sub9 RS-232/422/485 software selectable (DB models) 5.08mm 5-Pin Terminal block RS-232/422/485 sw selectable (TB models)

1-Port Industrial Modbus Gateway, RS-232/422/485, DB9(M)

1-Port Industrial Modbus Gateway, RS-232/422/485, Terminal Block

Wireless 802.11 b/g/n Modbus Gateway with 1 Combo Serial port, 1 Ethernet, Fast P2P

Wireless 802.11 b/g/n Modbus Gateway with 2 Serial port, 1 Ethernet, DB9(M), Fast P2P

Wireless 802.11 b/g/n Modbus Gateway with 2 Serial ports, 1 Ethernet, Terminal Block, Fast P2P

Wireless 802.11 b/g/n Serial Device Server with 1 Combo Serial port, Fast P2P, 1x antenna