Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Router 4A 64MB 100Mbps [EU] (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Hong Kong. You can get coupon down below.
Link: Banggood product page
Coupon (38.06 USD): BG589b2e
(CouponsFromChina.com tip: apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): 502C6B, f0bb90, e2bcea, TTxBG10, 2019SPEDM, BG3CSUM, bgssaff9, AFfbG10, BGbda58f, BGXMR4A, BGBFAFF2019, BGCITYADS2019, BGMPB2020, BGAFF10OFF, bGhOnEy10, BGdragonBoat, bgshOOp10, BGN902Z, BgcLuBofErtA10, BGNLP856, BGNDS10OFF, BGCuponation10, BGN0556CZ, BGHONEY2110, 13f142, BGN0756M, BANGGOODSD, BGYA54856M, 6GSGIT, BG5e68ca, BGa43834, BG5ab9b9, BGf65722, 00c906, BG110e93, BG00c906, ADMITAD2212, BG989f64, BG81b401, 2022ACTIESNL, BGf28bdf, BGf5a141, Terence, Tabby20, 2203ActiesNL, BG1efeb0, 8Couponsde, MVC8SPRING, BG7565fb, BGa7eb00, 8BGwbg2204, BG2ba292, 8wEbgaInS5, BG4e3398, hoNEYbGdeAlS, BGcc6132, BGa19030, BGWSCYT1, BG877e00, BGde2f67
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Router 4A 64MB 100Mbps [EU] (-3 USD)
Price history and price alert
Price history (for all/most countries) for Xiaomi Router 4A 64MB 100Mbps is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).