Just check coupons out (with price alert and history). What is the best price?
Model: GK100S, 3. Keys Amount: 104keys, 4. Connection: USB wired, 5. Anti-ghost key: Any 6 Keys/ NKRO, 6. Keycap: Double Shot injection Molding ABS Keycaps, 7. Click life: Up to 50 million clicks, 8. Rated voltage: DC 5V/250mA
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
HP GK100S Mechanical Keyboard Gaming Laptop Office Keyboard With Detachable Magnetic Upper Cover Esports Wired Keyboard | $42.80 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
1. ($41.39): TTxBG10
you should apply the coupon 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): be472a, 502C6B, e18b44
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for HP GK100S NKRO Blue Switch Keyboard.
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)).