Xiaomi Gaming Keyboard (Banggood, Aliexpress: Cable Length (m): 1.8 m, Interface: USB 2.0, Key Number: 104, Keyboard Lifespan (times): 500 million times, Response Speed: 3ms (the best price with coupon)).
Just check coupons out (with price alert and history). Best price?
Aliexpress
I could not find it on Aliexpress. 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.
Link: Banggood product page
1. ($52.19): AFfbG10
2. ($53.93): aff7off
this code has to be applied 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/feV
Old coupons (from the oldest to the newest): 24f401, 4d8a18, e2bcea, 502C6B, 19b864, TTxBG10, e18b44, BGss506
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi Gaming Keyboard? There we go. The lowest price was: $48.44.
Price records source(s): Gearbest, 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)).