Buffalo LinkStation 420 4TB 2-Drive NAS - LS420D0402
This is a great choice for a home NAS although its features may be too limited for something along the lines of small home business or similar setup. The storage potential with this model is a bit limited as it has 4TB of data storage. There's another model that has only 2TB of storage, as well as a more expensive model that offers 8TB of storage, so you do have some options available.
This one comes with a USB 2.0 port, which is slower than a USB 3.0 port, so you don’t get the same level of read/write speeds and connectivity some other home NAS systems on our list. However, you are getting an RJ-45 Gigabit Ethernet port so you can still get fast performance. Unfortunately, the lack of USB 3.0 support is still potentially problematic. Overall, this is a solid choice and quite affordable for a home NAS if you don’t need it to handle a lot of responsibilities.