PC customization -RS232 to RS422 RS485 adapter Highlights generic brand RS232 to RS422 RS485 adapter Description: - Professional RS232 to RS485 / RS422 converter. Connect an RS485 or RS422 device directly to the COM port. - Serial charge pump drive technology, no external power supply, true three-wire communication (TXD, RXD, GND). Protection of sensitive industrial equipment with integrated ESD protection. - Transmission distance: RS422 maximum 1200m (4000Ft), RS232 maximum 15m (50Ft). -Support OS, Windows 95/98/2000/2003/XP/Vista, Win 7/8, etc. specification: Material: plastic and metal Size: 60x30x15mm/2.36x1.18x0.59inch Package includes: 1 Piece Adapter Note: Please allow slightly difference due to manual measurement. Color may be slightly different from different monitor.