Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (659.99 USD): BG2b7439
Coupon (809.09 USD): aff7off
Coupon (849.99 USD): BG1126f8
(CouponsFromChina.com tip: apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG113ed4, BG2bde8c
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for ONE NETBOOK One Mix 2S M3-8100Y 8/512GB Notebook.
Price records source(s): Banggood
Click on image to enlarge.
You can set price alert (for Banggood).