You can use code: KNI7EVG8 at Amazon to get the Lumsing 5-port USB Desktop Charger for only $5.99 (Reg $21.99) and Prime Shipping. The price is $12.99 but will drop to $5.99 when you apply the code in your cart.
If you are not already a Prime Member you can join with a 30-day free trial of Prime, as a student with Prime Student, or as part of Amazon Family.