based USB to TTL Serial Cable are designed using the the standard FT232RL chipset.The cables provide a fast, simple way to connect devices with a TTL level serial interface to USB.The cables are available with a 6-way , 0.1inch connector TTL levels is 3.3VThe TTL-232R cables are a family of USB to TTL serial UART converter cables incorporating FTD's FT232RQ USB to Serial UART interface IC device which handles all the USB signalling and protocols.The cables provide a fast, simple way to connect devices with a TTL level serial interface to USB Each TTL-232R cable contains a small internal electronic circuit board, utilising the FT232R, which is encapsulated into the USB connector end of the cable. The other end of the cable comes with a selection of different connectors supporting various applications .Cables are available with either a 6-way ,0.1inch pitch connector, a 3.5mmAudio Jack, an 8 way, keyed 2mmpitch connector (intended for use with VMUSIC2 or VDRIVE2) or bare, tinned wire ended connectionsThe USB side of the cable is USB powered and USB 2.0 full speed compatible.Each cable is 1.0m long and supports a data transfer rate up to 3 MbaudRed wire: 5VBlack wire: GNDWhite wire: RXDGreen wire: TXDYellow wire: Blue wire: Colour:blackMaterial:plasticPackage Contents:1* 6Pin FT232RL FT232 ModuleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.