Main features: Chip: FT232/CP2102/PL2303 optionalType: USB to RS232/RS485/TTLPinout: VCC(5/3.3v), GND, TXD, RXDUSB AM shell design, convenient for testing and maintenance.Length: 0.15-10m optional, 1.8m in stockCable: UL2725 24AWG*2P+28AWG*2P, BC48B+AL for shielding, OD=3.8mmWires color: Green/White/Black/RedInsulator: PVC, blackLength: 0.15-10m optional