Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (13.79 USD): tRaDetRaCKeR
Coupon (13.79 USD): 8wEbgaInS5
Coupon (13.94 USD): 2203ActiesNL
(CouponsFromChina.com tip: 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
Old coupons (from the oldest to the newest): BG3b41b6, BGb7caab, 8Couponsde, MVC8SPRING
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for Yesunion 2.5 inch Hard Drive Enclosure Type-C USB3.1.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).