$7.99 – 12-24V Triple USB Car Charger Socket QC3.0 & Two PD3.0 With ON/OFF Independent Switch Fast Charging Adapter – Blue Light.
You can get 12-24V Triple USB Car Charger for $7.99 using coupon code (in Banggood). Price history, coupons and price alert are available on this page. What is the best price?
Latest coupon and price update (UTC):
Banggood ($7.99)
Banggood warehouse is located in China. Coupons for 12-24V Triple USB Car Charger? Nope, there’re no coupons in Banggood. Is it a low price? Well, this price is higher than average price ($7.49)
Link: Banggood product page
Price: $7.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGAMMT03
(there’s a little possibility that old coupon will work)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for 12-24V Triple USB Car Charger. The lowest price was: $6.99.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).