Just check coupons out (with price alert and history). What is the best price?
Frequency 47/63Hz, Rated Power 1850W, Name Mine Graphics Card Power Supply, Material Metal, Input Voltage 180-240V, Current 15A/8A, Color black, Interface 20+4pin /4+4pin /8 SATA /16*6+2pin /3 IDE, Plus Platinum Label, Total Power 2000W, Model LX2000T
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. There is one coupon right now! Check this out.
Link: Banggood product page
1. ($70.47): BG8FORMULAMX
apply it in your cart 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): BGyuityui, BG345dfgs, BGpowerr1, BGgsdge5, 7bcdf9, BG7f4f63, BG1fe2d6, BG215f2a, BGee119f, BG00c906, 2022ACTIESNL, BG3454bd, MVC8SPRING, 8BGwbg2204, hoNEYbGdeAlS, Cuponation9, BGCPNES12, BG589b2e, BGSaleFeb8, BGSaleAD, BGMARCHSALE, BGAUGUST8, BGCAPITALOS8, BGCOUPERT8
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for 2000W Miner Graphics Card Power Supply 80+ Platinum? There we go.
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)).