PIX-LINK LV-UW10S WiFi Dongle (Banggood, Aliexpress: up to 150Mbps, Chip: MT7601, Antenna gain: 5dBi (the best price with coupon)).
Basically copy coupon, view price history or create e-mail price alert. 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):
Price history and price alert
Here is price history (for all/most countries) for PIX-LINK LV-UW10S WiFi Dongle. The lowest price was: $1.99.
Price records source(s): Gearbest
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)).