GPU Radeon™ RX Vega 10 Graphics (Graphics Frequency 1400 MHz), Storage Expansion 1×2.5 inch SATA HDD Slot (SATA 3.0 6.0Gb/s), Processor AMD Ryzen™ 7 3750H / 4 Cores/8 Threads (Total L2 Cache 2MB / Total L3 Cache 4MB / Base Clock 2.3 GHz / up to 4.0 GHz), Memory DDR4 8GB×1 Dual channel (SODIMM Slots×2), Storage M.2 2280 256GB PCIe SSD, Wireless Connectivity M.2 2230 WIFI Support (Intel® WIFI6 AX200 / BT5.1 pre-install), System Windows 10 Pro.
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
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Coupons for Minisforum UM700 3750H 8/256GB Mini PC? Nope, there’re no coupons 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!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG8bbb9e, BG69ea15, 7bcdf9, BG67da35, BGUM700256G, BG7d5ae9, BGHU1046, 6GSGIT, 00c906, BGe82555, BGef96eb, BG0cce2b, BG808646, BG3f4bee, Kortings10, 2022ACTIESNL, BG1c5777, BG01e1e2, BG0202ac, BG2b6f41, BGac13ff
(there’s a little possibility that old coupon will work)
Price history and price alert
Check out price history chart (for all/most countries) for Minisforum UM700 3750H 8/256GB Mini PC. The lowest price was: $399.99.
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)).