Now it's time to remove the Hard Disks.

BE CAREFUL, when handling these parts do not touch the circuits, do not shock, and do not let your dog play with them. I'm serious, this could lead into data loss.

At the back of the DNS, pull out the two little levers to make the hard drives come out.

Gently put them in a safe place until the whole unit is reassembled.

The drives are order-specific! Remember if they were right or left, otherwise you will be prompted with a message when accessing the NAS after reassembly.