Kensington 4-Port USB Charger for Mobile Four USB power ports charge up to four mobile devices simultaneously Eliminates the need for multiple wall chargers and outlets Small, compact design does not block extra wall outlets and looks good in your home Use with your existing USB charging cable or Kensington USB Power Tips (sold separately) to power and charge your mobile devices Input: 100-240VACm, 50-60Hz, 0.3A Max; Output: 1-4 x USB, 5 VDC, 2.0A Max