Description: Support 3.3V, 5V, chipset FT232RL USB power has over current protection, USB power using 500MA fuse (FUSE) to protect USB power and equipment RXD/TXD transceiver communication indicator Pin definition: DTR RX TX VCC CTS GND The latest driver download address: http://pan.baidu.com/s/1c0COdNy Specification: Material: PUC sheet Size: 42*10*18mm/1.65*0.39*0.71'' Package Includes: 1x USB to TTL Serial Adapter Module