So called "select coupons"
Work for many products during sale, sum with all other coupons.
Can get many of them (up to 5 in one place usually)
Separate coupons
Yi mi camera with 2 lens for 233
Make sure to add goods into cart, Aliexpress gives 5 coins per each, 50 coins max during each day, total can get 350 coins, later they always allow to exchange them to coupons.
https://sale.aliexpress.com/__pc/2019_328_coins_exchange.htm
Cheapest outside US, nice DDR4 memory
With proper coupon during sale will be below $40 for 8GB.
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