Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Interface: USB 3.0, Ports: 2*USB 3.0 ports; 1*RJ45 LAN port; 1* HD port; 1*3.5mm audio port, Brand: Rocketek, Model: SGO773, USB 3.0 transmission speed: 5Gbps
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 and price update (UTC):
Banggood
Banggood warehouse is located in China. Only one coupon available!
Link: Banggood product page
1. ($32.55): BG96af8c
put item in your cart and apply coupon code there 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): BGc38c90, BGd1030d, 2022ACTIESNL, BGe5ab17, Terence, Tabby20, 2203ActiesNL, BG1efeb0, 8BGwbg2204, BGHUB15OFF
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for ROCKETEK SGO773 Surface GO Hub.
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)).