The Fresh Roast SR700 Coffee Roaster is the 4th generation of our coffee roaster line. This new model allows the operator to plan out the entire roast beforehand, entering precise points of heat, fan speed and length adjustments; load the beans and sit back and enjoy the show! Adjustments can be made during the roasts. The roasting profile can be saved for exact future roasts. Your Windows PC will need a USB port. Your SR700 roaster can also be operated manually, independent of your computer. Software is compatible with all 32 and 64-bit Windows XP, Vista 7 and 8 operation systems.