... 600W Surge Protection,Full duplex,Baud rate up to 920K ,design for industrial using Product Features:Computer interface: USB ... Duplex ,Automatic flow control for RS422 Full Duplex.Transmission rate: from 300 bps to 1Mbps.MaximumRS-422 cable length : 1200 mMaximum ... mm(not include cable)Operating environment: 0 to 70°C, 10 to 90% relativehumidity, non-condensing. High Speed USB to RS422 converter