Depends on the purpose. I'm assuming for at home. High quality? Get a Synology. Qnap is nice too, but Synology usually has a little better specs. All other bra

Depends on the purpose. I'm assuming for at home. High quality? Get a Synology. Qnap is nice too, but Synology usually has a little better specs. All other brands are 'just not that good'. Build your own? Go to https://www.xigmanas.com https://www.xigmanas.com Just grab some hardware you think might work. Better hardware usually results in better NAS, but it will never be as optimised as a Synology. Want to tinker with software endlessly? Any system that will support some kind of Linux. Take the word endlessly very literal. I have a lot of various NAS systems. I don't trust any of them with very important data. Most of them have automated backups to various other systems.