The GM3500iAED is ideal for camping, tailgating, job site, emergency home use, and any scenario where power is needed. Parallel Ready. Double your power with parallel capability. Included are 2x 120V 20 Amp,1x 120V 30 Amp, and 2x USB Outlets you can use to power your phone, laptop, or other sensitive device. The GENMAX 3500-Watt Dual Fuel Portable Inverter Generator will be reliable to make powering your life more convenient than ever. 145cc 4-stroke OHV high-speed engine produces 3500 peak watts and 3200 rated watts with clean electricity (less than 3% THD) on gasoline or propane.