The QNAP TS-216G 4G 2-bay NAS is specially designed for working from home and small offices. The storage capacity has been expanded up to 39 TB with two 22 TB hard drives. The hot swap drive bays let you quickly and easily swap out hard drives while everything is up and running. Highlights: - Easily back up the contents of USB devices by pressing the "One-Touch-Copy" button. - Built-in NPU accelerates AI image recognition - Extensive protection with Snapshot