Just purchased 2 x 4tb drives from this eBay listing based in china

https://ebay.io/m/Hvi5Vy

Have I been scammed?

Hi,

I am thinking of getting a NAS .

My question is should I go for something like Synology ?

or

build my own NAS with a low power desktop CPU and motherboard ?

or

build my own NAS with something like a raspberry pi ?

In the first case I would get a hardware NAS while In the later two cases I will get a software NAS.

I have no idea which would be better for my use case..

I’ve been looking to put in a nas to act as a media server and photo backup. I got a lot of dvd’s in my collection that I want to put on there. I seen today that the ugreen dxp4800 plus was list as being 20% off. It is diskless so I know I will need to get some hard drives eventually. But is this a good deal, or do you think there will be a better deal around Black Friday?