I am looking for a Nas for home use.my needs : data Storage (Photos, Videos, Etc.)Multimedia server (streaming, Music)Surveillance station (communication with cameras)I've been searching for a couple of weeks and now i am hesitating between two brands : Synology and QNap and precisely two NAS : the Synology DS216+II and the QNap TS251+ The QNap Hardware looks more interesting : 2GB RAM upgradable to 8GB, Quad Core CPU, the Synology 1GB RAM not upgradable and dual core CPU.Both NAS have almost the same price.It will be my first Nas so i don't have any experience with none of the two brands. Which product meets my needs and has better reliability?
Which is a better NAS : Synology DS216+II or QNap TS251+
nas
For multimedia streaming, beware of the qnap.  They have recently removed Kodi support due to (apparently) licensing issues with Dolby.  Further, their default player (again due to the licensing issue) will not play or transcode ac3 or dts.  I'm not sure that you can even play an mkv.  Lots of unhappy people on their forums at the moment.  I had the same(ish) choice as you: ds216+ii or ts-251a.  I went with the 251a because of better harware and assumed support for the most popular audio formats and container.  I regret that decision and will likely return it in favour of the 216+ii.