Aliexpress
Click here… to search for BMAX B2 Mini PC N3450 8/128GB [EU] on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. There’s only 1 record in my database, so I have no idea if the price is OK.
Link: Banggood product page
Coupon (99.99 USD): BG07a6f8
Coupon (172.89 USD): Cuponation9
Coupon (174.79 USD): hoNEYbGdeAlS
Coupon (174.79 USD): DealBGimpact
Coupon (178.59 USD): BG00c906
(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): BGBXAM, BGb2Mc, bGhOnEy10, BGB2UN, BGFAB2, BGB2UNE, BG7DMN08, BG7D2MN05, bgshOOp10, BGMN9D12, BGBZB2, BGSEBX, BGMC518, BG11MN13, 7d18f7, BGCuponation10, BGB2N35, BGBRDBX, 13f142, BG44dc19, BGB2BMAX, BG56b0b0, BGe8c158, BG054d4b, BG4d8896, BGa21c70, BG0f48dc, BG3d2f86, BGb67d2d, BGb4c816, BGBXB2PBS02, BG1273cb, BGa232bd, BGe8a629, 6GSGIT, BGfc7099, BGa53a84, BGMNPCK40, 00c906, pROMo8cuPoN, BGJUNEGSG9, BGc14744
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history is not available for this item (not enough database records)! The lowest price was 99.99 USD though.
You can set price alert (for Banggood).