Unidade SSD vs. stick da placa-mãe SSD

Nice computer :-)

Backing up a step, the second drive you linked to is an "M.2" SSD. They cost about the same per GB as the SATA format (the Adata). The major differece: The SATA was designed to be a drop-in replacement for a hard disk in any existing computer. The M.2 is smaller and much faster.

As Davidgo notes, your MoBo (motherboard) may be able to support the M.2. If so, that's definitely the better way to go. Possible gotchas, even assuming the MoBo is identified correctly, are that some motherboards will disable some SATA capability if you add an M.2. You'll want to carefully check for this in the MoBo's manual.

Para complicar ainda mais a vida, existem vários tipos de M.2. O Samsung em seu link é compatível com SATA, o que significa que mesmo que (obviamente) não use um conector SATA, ainda está limitado a velocidades SATA. O "NVMe" que sua placa parece suportar (está impresso na placa em um dos pix) é um conector diferente e muito mais rápido. Observe os diferentes entalhes do conector no Samsung NVMe M.2 aqui:

https://www.amazon.com/dp/B01N8Z82SY/

Se o seu MoBo tiver o slot NVMe com a chave correta e nenhuma desativação SATA (ou você não estiver usando o canal SATA que será desativado - você tem muitas unidades lá), o NVMe fornecerá um grande aumento na velocidade da unidade .

Assuming you have this motherboard (GA-X99-Designare EX) as I could barely make out from your second photo, it looks like you can add the m.2 card you are looking for on Amazon (but double check your motherboard before buying it, and you might want to check you can send it back just in case !)

Looking at the Gigabyte page for the board it claims "NVMe PCIe Gen3 x4 2210 M.2 Interface...", and if you scroll down it talks about "Fast Onboard Storage with NVMe ..." and lists that it can take a type 2280 module.

The module would look to fit between the 5th and 6th PCIe slot (assuming the first slot is at the top left).