What internal SSDs can I buy for this laptop?

[SuperSpasm]

So I'm very very confused.

I want to get an internal M.2280 SSD drive for a Dell inspiron i7559-2512BLK (I'm planning on ordering the SSD with the laptop, so I don't have access to the physical machine). at first I thought this would be relatively straight forward, figure out what form factor I need and buy one, but after researching for a few hours I'm more confused than when I started- I stumbled across many terms, some farmiliar and some less so- SATA, mSATA (not even sure if this is for a connector or the interface), PCI, SATA express, M/B keys, NVMe, and so on.

In the beginning I thought that if a laptop uses the M.2 connectors for the ssd, that means it connects via pci-e, and within those there are variants of speed represented by B,M keys.
But then I saw that some should work over SATA, and apparantly not compatible with the pci ones?

I tried going to the specifications of the laptop on dell but they only say "one M.2 drive".

I'm really frustrated with this, could anyone help me understand how to know which M.2 drives should work with this laptop

 

[bootcher]

Since the chipset on the laptop is an intel 10 series it supports PCIe M.2 NVMe, however, it does not state anywhere that the M.2 drive is actually connected through the pci express or through sata. Since NVMe drives are a bit expensive compared to 'regular' 2280 M.2 drives, I would just get a nice sata M.2 drive. It would still be blazingly fast compared to the hybrid drive it ships with.

Update: It seems the M.2 slot is connected through sata III, not PCIe. So you can only use 'regular' M.2 drives, not PCIe ones:
http://en.community.dell.com/support-forums/laptop/f/3518/t/19667192

 

[SuperSpasm]

Since the chipset on the laptop is an intel 10 series it supports PCIe M.2 NVMe, however, it does not state anywhere that the M.2 drive is actually connected through the pci express or through sata. Since NVMe drives are a bit expensive compared to 'regular' 2280 M.2 drives, I would just get a nice sata M.2 drive. It would still be blazingly fast compared to the hybrid drive it ships with.

Update: It seems the M.2 slot is connected through sata III, not PCIe. So you can only use 'regular' M.2 drives, not PCIe ones:
http://en.community.dell.com/support-forums/laptop/f/3518/t/19667192

So I should check that the SSD works on SATA rather than PCIe? for example- this one should work, right?

P.S- does mSATA come into play here? or basically, do I have to check anything else other than size (M2.2280) and interface (SATA III)?

 

[bootcher]

That one should work just fine. No mSATA, just M.2 with SATA III interface and the size 2280 or 80mm. In general PCI express drives will not work, or you will not be able to boot from.

 

[SuperSpasm]

Alright, thanks!