Xiaomi 65W USB-C Gan Charger (Banggood, Aliexpress: Power 65W (Max), Material PC+ABS, Input 100-240V /50/60Hz /1.7A, Output 5V-3A 9V-3A 10V-5A 12V-3A 15V-3A 20V-3.25A 65W MAX, Brand XIAOMI, Size 30.8*30.8*56.3mm (without plug), Name Mi 65W Fast Charger with GaN Tech, USB-C Protocols PD3.00/PD4.0/SCP/FCP/AFC/Oneplus Dash/OnePlus Warp/VOOC 1.0 /2.0 /3.0 /4.0/Apple 2.4A/BC1.2, Weight About 100g, Port Type USB-C (the best price with coupon)).
Check coupons or create price alert down below. Do you want to know what the best price is?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Hong Kong. I found coupon for you. Check this out.
Link: Banggood product page
1. ($39.46): BG85d5c6
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG8c4a6b, BG0b2986, BG584ba9
(there’s a little possibility that old coupon will work)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi 65W USB-C Gan Charger. The lowest price was: $22.99.
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)).