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The QNAP TS-451+ is a four-bay NAS capable of running up to a RAID 5 configuration. You can even transcode and stream 4K video files with the TS-451+. For home-based uses, you the QNAP will pretty much cover everything you need.
SpecsUpdate
Pros
Pro Highly failure-proof
This NAS can withstand simultaneous failures of up to two hard drive making it one of the safest data storage solution in its price range thanks to it's RAID6 and RAID10 compatibility. Shall all four hard-drive bays be populated, you can use it in either RAID6 or RAID10 arrangement.
Pro Great for surveillance systems
This unit comes with two free surveillance camera licenses that can be used with special surveillance software. If you want to use more than two cameras, you can scale up your surveillance network by purchasing additional camera licenses. Up to 40 IP surveillance cameras can simultaneously stream data to this unit. It supports more than 3000 different kinds of camera.