Aliexpress
Click here… to search for GPD P2 MAX M3-8100Y 16/512GB Tablet on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood.
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGgpdp2, bgchinafest, aff7off, Email5, BG4289ef, bgshOOp10, 7d18f7, 13f142, BGCuponation10, BG33ec6f, BG80c90f, BGebbb98, 6GSGIT
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for GPD P2 MAX M3-8100Y 16/512GB Tablet.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).