Lantronix UDS2100 Device Server for serial to Ethernet conversion - Convert from RS-232, RS-485, RS-422. DB-9, 2-wire, 4-wire, serial to RJ-45 10/100 Mbs Fast Ethernet; Wall mountable, Rail mountable - UD2100002-01 More for the money with this high quality Product Offers premium quality at outstanding saving Excellent product 100% satisfaction