According to my DB the lowest price is 17.99 USD for Lenovo 64GB A1 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Latest price update (UTC time):
Banggood (17.99 USD)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. Is it expensive? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal 8.89 USD)
Link: Banggood product page
Price: 17.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGc5c9d3, BGd41d88, BG00c906, BGa84e93, ADMITAD2212, BGaaf665, BG113604, BG43e0cb, BG6afe20, BG760174, BGb952f2, BGCCHU40, BG93049b, BG20c5e7, BG4b21d5, BGJUNEGSG9, BG9f94e4, BGb123d1, BGWSCYT1, BG071e68, BGa70b1c, BGde2f67, BGad2191, BGa8e72a, BG589b2e, BG8FORMULAMX
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Lenovo Thinkplus MicroSD Card 128GB (34.99 USD)
Aliexpress
Click here… to search for Lenovo 64GB A1 U3 Micro SD Card on Aliexpress
Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Lenovo 64GB A1 U3 Micro SD Card is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).