Check if there is $12.99 coupon for E-yield 2.5 inch Hard Disk Box USB3.0 Enclosure (in Banggood). Check coupons or create price alert down below. Let’s see what best price is ATM.
E-yield 2.5 inch Hard Disk Box Transparent SATA SSD/HDD to USB3.0 Solid State Drives Enclosures Up to 2TB
Latest coupon and price update (UTC):
Banggood ($12.99)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. Is it cheap? From what I can see this price is higher than average price ($7.52).
Link: Banggood product page
Price: $12.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGde2f67, BG589b2e, BGc209d1
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for E-yield 2.5 inch Hard Disk Box USB3.0 Enclosure.
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)).