M.2 SSD NVME 4 QNAP NAS?

[fnosm]

I'm setting up a NAS primarily for PLEX and media(audio, video, pictures) storage/streaming
To that end I have purchased the following:
QNAP TVS-h1688X-W1250-32G
WD Gold 10TB HD(WD102KRYZ4) 4 each
WD Red 1TB SSD (WDS100T1R0A) 4 each

Now I am looking at which M.2 SSD NVME cards to add.
I intend to use these drives for my system volume in a Raid 1 configuration.
*Do you recommend using these SSD's in this way?
*Which brand and size do you recommend for this purpose?

It seems like the 32G RAM included is a good start but I'm not sure it is enough.
*Should I add more RAM while I have the case cracked and if so how much?

[QNAP_UK]

Hi Fnosm, We always recommend where possible to install the system on M.2's when running QuTS Hero. As long as those drives are on the supported list they'll be ideal. With regards to RAM, the more the better, but also depends a lot on what you are using it for. Upgrading RAM is easy on this model, so I would recommend seeing how the system performs, and with everything you're putting together, you may not need it!