Sansai 4.2A 4-Ports Station A USB ChargingSansai USB Charging 4. 2A 4 Ports Station A Charge up to four devices simultaneously from any mains power outlet with this nifty contraption. Delivering an impressive 4. 2A of high speed charging power, it's suitable for juicing up your smartphone, tablet, digital cameras and more at home or while travelling. Product Features: Ideal For home or travel, this four port USB wall charger lets you power up to four devices simultaneously from just one power