Connection: USB Wired (Detachable USB to Type-C Cable), Switch: Cherry Switch Red Switch, Supported Systems: Win10, Dimension: 357*129*32mm, For macOS, Black, Cable Length: 1.6M, Color: White, Layout: 87 Keys, Material: Metal + ABS/PC.
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 coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($122.71): AFfbG10
2. ($122.71): affbg10
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): a0aeff, PCNETWORK, e2bcea, TTxBG10, e18b44, BGss11, BG3CSUM, 502C6B, BGBFAFF2019, BGCITYADS2019, BGVDay10%off, bGhOnEy10
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Xiaomi Yuemi Pro MK02 Cherry Keyboard White ($-3)
Price history and price alert
Price history (for all/most countries) for Xiaomi Yuemi Pro MK02 Cherry Keyboard Black is here. The lowest price was: $114.74.
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)).