Overview: You are looking at a set of FMS USB (Universal Serial Bus) interface for PPM signal, like Futaba & E-Sky walkera transmitter. it can transfor the PPM signal to PC internal channel control vector, it can transfor 4-8 channels, and support many simulator software, like FMS or G2, G3, G3.5, aerofly, you can use your transmitter to be a PC simulator easily!we supply FMS software (version 8.3) include 270 models files.FMS software CD include 270 models Package include:USB cable for Transmitter with 2.5mm Male connector X 1 Adaptor transfor 2.5mm Female to esky connector X 1 Adaptor transfor 2.5mm Female to Futaba connector X 2 Specification: Support many software FMS (free)G2, G3, Aerofly Support win 98 win NT win XPSupport USB1.1 USB2.0 Input:4-8 channel PPM signal Esky Futaba JR adaptor include Weight Approx:100g Size Approx:17 x 9 x 3