According to my DB the lowest price is 376.73 USD for ATOMSTACK A5 M40 (in Banggood). Just check coupons out (with price alert and history). Do you want to know what the best price is?
Latest coupon code price check (UTC time):
Banggood (376.73 USD)
Banggood warehouse is located in China. Price? Well, this price is higher than average price (232.88 USD) There is one coupon available! Pretty cool, huh?
Link: Banggood product page
Price without coupon: 409.49 USD
Coupon (376.73 USD): BGHONEYSP
(CouponsFromChina.com tip: you should apply the coupon 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): BGc0fdae, 7bcdf9, BG0c07af, BG36ba03, BGe7ceed, BG25550d, BGac6bf3, BG185c94, BG47ffb7, BG1fea62, BG330696, BGe75966, BGa27746, BG97e11c, BGe91256, BGf3cd70, BGfdfc68, BG84517d, BGa03275, BGfacea9, BGd406e7, BG8b9a5d, BG478588, BG87ffd8, TTBLACK5, BG589b2e, JanBGCoupon8, BG554c83, BG9b7f45, BGb42e89, BG5b4ab4, BGffb121, BG4df7db, BGcc04af, BG807159, BGAUGUST8, BG8de3ad, BG8ccb3b, BG551560
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – ATOMSTACK A5 M40 5-5.5W Laser Engraving Machine [EU] (-3 USD)
Aliexpress
Click here… to search for ATOMSTACK A5 M40 5-5.5W Laser Engraving Machine on Aliexpress
Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for ATOMSTACK A5 M40 5-5.5W Laser Engraving Machine? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).