Pyramid-jzt via Amazon offers the Aukey CC-01 Multi-Port USB Car Charger Power Adapter in Black or White for $16.99. Coupon code "RDT6HWYN" cuts it to $12.49. Plus, Prime members receive free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it adds $6.01.) That's $3 under our August mention and the lowest total price we could find for either color by $8. Compatible with most USB-charging devices, it features a maximum 48-watt output and four USB ports.