The product: Asustor AS-604T NAS server comes with no storage included, but it's very fast to install your own hard drives, thanks to the front-facing drive bays. Each of these bays includes a tray that can be easily unlocked and pulled out. After that it's simple to assemble a standard 3.5-inch hard drive on it. There are more than enough screws included for all four hard drives, always a good thing. You don't need to fill all four drive bays to use the server, but it's recommended that you do so, and use drives of the highest capacity
