Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
GPU: Penta-Core Mali-450, Ethernet: 10/100M standard RJ-45, Video decode: 4K VP9 Video decoder, WIFI: 2.4G /5G dual-band Wifi 802.11 a/b/g/n, OS: Android 9.0, ROM: EMMC 128G, CPU: RK3318 Quad-Core 64bit Cortex-A53, bluetooth: 4.0, RAM: 4G
Aliexpress
There’re some similar (or not) items on Aliexpress
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. Too bad there’s no coupon right now in Banggood.
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!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): elec, BGBFAFF2019, BGCITYADS2019, 7d18f7, BG9NY, bGhOnEy10, BGAFF10OFF, 13f142, 6GSGIT, BG00c906
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Price history (for all/most countries) for HK1 Super RK3318 4/128GB TV Box is here.
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)).