Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Beelink U57 i5-5257U 8/256GB Mini PC (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. I’m not sure about the price, coz I have only 1 record(s) in my database. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Coupon (290.99 USD): 7bcdf9
(CouponsFromChina.com tip: apply it in your 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): BGY8263, BGY23956, BGY2987, BGYBL57, BGYBU57, BGHALLOWEEN, BGBLMINI, BGBEELU57, BGBELU57A, BGsantaUK10, BGU57PC, BGBLU5503, BGBLU5504, BGe68290
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Beelink U57 i5-5257U 8/256GB Mini PC (-3 USD)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: 274.99 USD.
You can set price alert (for Banggood).