Backlight: White, Operating System: Windows XP / Vista / Win 7 / Win 8 / Win 10, Layout: 87 Keys, Color: Purple, Keycap: PBT Keycaps with Dye-Sublimation, Connection: Type-C Wired, Switch: Cherry Switch (Blue / Red / Brown Switch), Brand Name: DAREU, Theme: Dream, Product Size: about 359 * 136 * 36mm, Model Number: A87, Product Weight: about 1250g.
Basically copy coupon, view price history or create e-mail price alert. Best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
1. ($96.79): BGff5312
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG035e42, BGc0ac93, BG2e20ea, keyboardMVC, BgGoodie9
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for DAREU A87 Mechanical Keyboard Dream 87 Keys Cherry MX. The lowest price was: $89.99.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).