... ,600W Surge Protection,Full Duplex,Baud rate up to 920K,Supports windows ME/XP/2000/CE, MA ... Product Features:usb to TTL converter Computer interface: USB V1.1 2 ... superior.Field Interfaces:TTL logicTransmission rate: from 300 bps to 1Mbps.Maximum TTL cable length : 15 mPower: ... 35 x 15 mm(not include cable)Operating environment: 0 to 70°C, 10 to 90% relativehumidity, non-condensing ...