With the rapid development of IT industry and the continuous updating of multimedia technology, the storage capacity of multimedia information is also increasing, and more and more data information backup will be an urgent problem for users.
among many storage methods, hard disk storage has become the first choice for many users because of its large capacity and long storage life. Hard disk copying machine is the product of this. Hard disk copying machine is more expensive than optical disk copying machine, but according to the unit price of storage capacity, hard disk copying machine is the most affordable way to store.