I'd like some feedback on my NK build

  • I’d go for 2x8GB sticks that way you can add 2x8GB more later for maximum capacity.
    16GB isn’t overkill, it’s a good starting point.
  • I’d opt for the 500W if it’s not too much more expensive, but either should be fine.
  • Look at this list of CPU coolers.
    [Official] CPU Heatsink Recommendations

  • You don’t need a SAS controller, but it gives you the flexibility to run both SAS and SATA drives. SATA splitter cables do not exist.
  • We recommend Arctic fans, specifically the P12 PWM PST 5 pack. IIRC the Node 804 only comes with 2 fans by default. The 5 pack will be plenty.
  • NAS handles any and all file storage duties! Plex transcoder is just for Plex.