Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Keys Amount 104 Keys, Model MK03C, Weight 800g, Switch Simulation Blue Switch, Color White, Connection USB Wired, System Support Windows 10, Size 440 *131 * 33 mm, Material Plastic + Metal
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($46.79): bGhOnEy10
2. ($46.79): BgoFErTaSchInA10
3. ($46.79): BGAFF10OFF
4. ($46.79): BgcLuBofErtA10
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): AFfbG10, BGBFAFF2019, BGCITYADS2019, BGMPB2020, BGdragonBoat, BGSS10%SW
(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
Do you need price history chart (for all/most countries) for Xiaomi YMI MK03C Blue Switch Keyboard? There we go.
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)).