Safely charges and powers up to 7 devices, including laptops and tablets, during important workplace meetings and conferences 540 joules protect your valuable electronics against dangerous surges and spikes Three NEMA 5-15R outlets are spaced apart to accommodate bulky transformers. Four USB ports share 4.8A for fast charging of phones, tablets and other mobile devices Ball shape takes up little room on your conference table and easily packs away for travel Antimicrobial protection helps resist the growth of bacteria, viruses, fungi, mold and mildew