**********UL, FCC, and PSE certified. *****Charge speed 3.4A max, up to 2.4A per port. *****It can charge up to two usb-a devices at once. *****The slim size and folding plug let you put it in the purse pocket, or, for the gents, a back pants pocket. *****Our friendly and reliable customer service will respond to you within 24 hours. You can purchase with confidence, with our 12 month replacement warranty.