QNAP 2-Bay Personal Cloud NAS - TAS-268
This NAS has two bays for hard drives and each one supports up to a 6TB drive so you can get a ton of storage space out of those bays. It has a 1.1GHz dual-core processor, 2GB of DDR3 RAM, and 4GB of additional Flash memory which helps it run very quickly. It comes with a lot of nice software options and tools to control your setup, so you can customize this NAS to share files more easily and control who has access to your data.
This model doesn’t have an eSATA port so that’s something to keep in in mind if that’s an important option for your setup, though it does include one RJ-45 Gigabit Ethernet port. You get a total of five USB ports on this model including one USB 3.0 port on the front and four USB 2.0 ports on the back. That gives you some great options for connecting to this NAS, plus it includes a one-touch button that copies data from a drive connected to the front USB port.