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
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