When it comes to charging multiple devices, one outlet simply isnt enough. Thats why Antec created the UA4-15, 4-Port USB Hub Charger.No more tying up an outlet for a single device, now everyone can power up quickly at home, work, or on the go. With 3.1 amps of total power output, the UA4-15 will charge up to four USB devices like your smart phone, tablet, camera, or portable game system at the same time, from a single, compact hub. Fitting in any pocket, briefcase, purse, or travel case means the UA4-15 is always with you when you need it. Charge any USB device from any outlet with the UA4-15 and share the power.