Just curious, is this an Alienware m17 R4? Otherwise it looks like 2 x 512 GB M.2 PCIe SSD drives set in a RAID 0 array (the boot drive), and a 512 GB M.2 PCIe SSD for storage. Going by the specs I assume the RAID array drives are 2280 and the storage drive is 2230. Just guessing as you did not list the model your ordered.

Ahh, sorry. It’s been a while since I asked a question about tech. The specs are:

Alienware m17 R3

Hi @thspiral  welcome to this user to user discussion forum.  This is not Dell Support.

Dell Support for Alienware m17 R3 Setup & Specifications Storage capabilities depend on the model purchased. The M.2 storage interface is PCIe Gen3 x4 NVMe. From your description, your model supports One M.2 2230 solid-state drive and Two M.2 2280 solid-state drives. 

Having RAID 0 as the boot drive, requires the OS (C:) information to be shared 50% & 50% on the two drives. There has been discussion about having RAID 0, but there is no peceptional performance increase for a home computer and a single ultrafast 1 or 2 TB NVMe drive is the wise choice for the OS (C:) drive. Then if the system cannot be recovered, just swap in the single NVMe clone OS (C:) drive to get the system up and running within minutes. If the RAID 0 boot drive cannot be recovered, both drives have to be replaced with the two drive clone that has to be created external to the laptop or a different Disaster Recovery Plan option used. 

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