QNAP TR-004U - hard drive array

The QNAP TR-004U USB 3.0 RAID Expansion Enclosure allows you to expand the capacity of your QNAP NAS and PC. It can also be utilized as a DAS (Direct-attached Storage) device, allowing you to directly access its content by connecting it via USB. This appliance features four 3.5-inch SATA drive bays with multiple RAID configuration options and USB 3.0 Type-C connectivity to bring you a highly-reliable and secure storage capacity expansion solution.