What's a turbo Z drive? Can I swap it for a Samsung 860 Pro M.2? Can I have two M.2 devices to raid it? I don't want to lose my work. Edit: Liliputing says "There’s a 2.5 inch drive bay for a hard drive or SSD and an M.2 SATA SSD slot." ( https://liliputing.com/2016/11/msi-trident-compact-vr-ready-... )
It's a 4-way M.2 NVMe raid card, which HP has ignorantly decided to populate with seemingly mediocre SSDs instead of the current gen flagships from Samsung or Intel. You can remove the included SSDs and populate it with up to 4 960 Pro SSDs for what I imagine would be 14/8 GB/s sequential read/write performance. Unfortunately there's no way to buy it without the included SSDs, so you're better off with the unpopulate…
Edit: tweaktown was able to get 9.2GB/3.8GB read/write on a non-bootable array: http://www.tweaktown.com/articles/7553/samsung-950-pro-pcie-...