EasyAcc.A Store via Amazon offers its EasyAcc 20W 4A 4-Port USB Wall Charger in White, model no. 4U4A-WUS, for $12.99. Coupon code "2CP73UGO" cuts it to $10.39. Plus Prime members qualify for free shipping. (Non-Prime members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $5.99.) That's the lowest total price we could find by $16. It features a folding plug and can charge four devices simultaneously.