Transmission Rate: 300Mbps, Speed of Ethernet Port: 10/100Mbps, Gain dBi: 5dBi.
Basically copy coupon, view price history or create e-mail price alert. What is the 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 code price check (UTC time):
Banggood
Banggood warehouse is located in Hong Kong. I couldn’t find any coupon for this product on latest product update.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): aff7off, 502C6B, b07260, TTxBG10, BGRouter4C, BG3CSUM, bgssaff9, AFfbG10, BGXMR4C, affbg10, BGGR286, BGNF7DK0C, BGN1233XMR, 0e7f33, FBCOUPON1, BANGGOODSD, 00c906, BG00c906, ADMITAD2212, 2022ACTIESNL, BGd427ed, Terence, Tabby20, BGed3c4b, 8Couponsde, MVC8SPRING, BG31dd05, BG3c8962, tRaDetRaCKeR, pROMo8cuPoN, BGJUNEGSG9, BGWSCYT1, BG182689, BGde2f67, BG589b2e, BGc209d1, BGd3c8d3
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Mi4C Mi 4C Router 100Mbps [EU] ($-3)
Price history and price alert
Price history (for all/most countries) for Xiaomi Mi4C Mi 4C Router 100Mbps is here. The lowest price was: $13.99.
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)).