iXCC 20W 4-port USB Wall Charger Black or White-sale-01Amazon offers the iXCC 20W 4-port USB Wall Charger Black or White for $9.99 with free Amazon Prime shipping (or on orders over $35). That’s $15 off and the lowest price we could find on a 4-port USB charger. This one gets 4.9 out of 5 stars from Amazon reviewers and offers up to 2.4A of power able to quickcharge devices like the new iPads at maximum speed.