You can get RAM Cooler Cooling Fan for 21.99 USD using coupon code (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Latest price update (UTC time):
Banggood (21.99 USD)
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood. Is it cheap? Hmmm, price is higher than average (which is 19.49 USD right now), so better set price alert down below…
Link: Banggood product page
Price: 21.99 USD
Old coupons (from the oldest to the newest): BG589b2e
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
Click here… to search for ALSEYE RAM Cooler Cooling Fan RGB on Aliexpress
Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for ALSEYE RAM Cooler Cooling Fan RGB.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).