Ethernet to RS-232C Converter, model REX-ET60, supports 10M/100M Ethernet with a DC-IN 5V power supply. - Brand: RATOC Systems, Inc. - Model Name: REX-ET60 - Type: Ethernet to RS-232C Converter - Connection Type: 10M/100M Ethernet - Power Supply: DC-IN 5V Thank you for viewing. I was using this recently to connect with Sumaregi (a point-of-sale system), so it's still in good working condition. ^ ^ I only used it for about a year, and it's in beautiful condition with no scratches!