Even though we ignore 10 Gigabit test, the ASUSTOR AS4004T is a good NAS. It comes with almost everything I expect from a modern NAS device and at a good price of around $ 500 at the time of the test. A quick look at the competition shows that it's a really good price for an NAS that seats four hard drives. Add 10 Gigabit Ethernet and it's even more impressive.