Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – DM Alloy Warrior USB 3.0 Flash Drive 512GB (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (19.73 USD): BG589b2e
(CouponsFromChina.com tip: coupon code has to be applied in shop’s 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): BGe1630d, BGJUNEGSG9, BGb638c1, BGdc8013, BGb89050, BGff498b, BGa41710, BG8883cd, BGWSCYT1, BGb1cc08, BGc91a00, BGde2f67, BGf3637a, BGc209d1
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – DM Alloy Warrior USB 3.0 Flash Drive 512GB (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for DM Alloy Warrior USB 3.0 Flash Drive 128GB.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).