Updated: 28-01-2026.
KOORUI MK104 Wired Mechanical Keyboard German Layout QWERTZ 104 Keys Hot Swappable 26 RGB Backlit Gaming Keyboard for Windows Linux – Blue Switch
Banggood warehouse: Europe 
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Discount price $34.99 with coupon: BG15ea61
Additional Banggood coupons:
1. First page
2. Second page
Aliexpress
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Price history and price alert
There is only one database record (it was for $34.99), so you can’t see price history chart.
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)).