Just check coupons out (with price alert and history). You probably want to know what is the best price?
Model: PS-1300DK, Output: -12V / 0.3A, 3.3V/20A, Power: 1300w
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):
Price history and price alert
Price history (for all/most countries) for 1STPLAYER PS-1300DK 1300W Power Supply is here.
Price records source(s): Gearbest
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)).