$6.59 – Compatible with the port: ATX (compatible with partial BTX type), Model: XH – M229, The PIN number: 24 pin, Number of sets of output: Four sets of different voltage, Switch: Yes, Size: 12.8×4.8cm/5.04×1.89″.
You can get Geekcreit XH-M229 Desktop Computer Chassis Power Supply Module for $6.59 using coupon code (in Banggood). Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood ($6.59)
Banggood warehouse is located in China. Coupons for Geekcreit XH-M229 Desktop Computer Chassis Power Supply Module? Nope, there’re no coupons in Banggood. Price? From what I can see this price is higher than average price ($4.32).
Link: Banggood product page
Price: $6.59
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGd0b05d, 00c906, ADMITAD2212, 2022ACTIESNL, Terence, 2203ActiesNL, 8Couponsde, BG00c906, BGJUNEGSG9, Cuponation9, 9OFFSUMMER, BG589b2e
(these codes were not working in latest coupon update, but you can check them out anyway)
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.
Price history and price alert
Do you need price history chart (for all/most countries) for Geekcreit XH-M229 Desktop Computer Chassis Power Supply Module? There we go. The lowest price was: $2.99.
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)).