I bought an 8Tb disk on AliExpress for 21 dollars and I will explain the result to you.
I bought this disk at:
https://es.aliexpress.com/item/1005005075517208.html
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The disk took a week to arrive from China to Spain and I paid for it using Paypal. I was able to copy a maximum of 15Gb before the drive went offline. I have tried to open it to see what is inside but it is impossible because it is designed so that you cannot see inside. There are no screws and there is only a tiny hole through which I have inserted a specialized tool to be able to pull and try to slide the contents out, but pulling hard I have not achieved anything.
I have opened a dispute on Paypal so that they do not get paid and the result is that the Chinese company demands that the product be returned to China to return the money.
Then Paypal sent me a message saying that I am the one who has to pay the return costs and I have to present a return number, indicate the name of the courier company and provide an image of a receipt. Once it is proven that the product has arrived at the manufacturer in China, that is when they would refund my money.
Paypal gives me a deadline to provide proof before paying the manufacturer in full.
I have spoken with a large courier company that is next to my house and they have told me that they ship everywhere except China due to the difficulty of customs procedures and they have told me that returning the product would be more expensive than the amount of the product.
Reading a little on the internet, people say that they returned the product at their own expense but the manufacturer did not assume that it had arrived and they lost the product, the money for the product and the return.
So the result is that the Chinese company keeps 100% of the money for a product that does not work and is surely a scam. I wouldn't be surprised to find a 16Gb MicroSd memory inside.
That is, if you buy on AliExpress from a Chinese company and the product does not work, you have to lose money. So the Chinese company sends garbage and you keep it and nobody does anything. The police do not rush into your business to check what you are selling.
I won't buy anything in China again.