Brand Yesunion, Size (L*W) 110x 23mm, Hard Disk Protocol “M.2 NVME (PCIe protocol) & M.2 SATA SSD Fit for M.2 (M Key/B+M Key) SSD”, External Interface USB 3.1 Type-A, Support SSD Size 2230/2242/2260/2280 mm, Material PCBA, Support Capacity 2TB, Product Type M.2 Hard Drive Adapter Card, Model M2008, Transmission Speed 10Gbps.
Basically copy coupon, view price history or create e-mail price alert. 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.
Link: Banggood product page
1. ($20.23): BGWSCYT1
2. ($21.15): BG8ReviTrage
3. ($21.61): BG00c906
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG67102c, BGJUNEGSG9, Cuponation9
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for Yesunion M.2 NVMe PCIe to USB 3.1 Hard Drive Adapter 10Gbps M.2? There we go. The lowest price was: $15.99.
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)).