This is a used Synology DiskStation DS413j that is in excellent condition. the DS413j is a budget-friendly 4-bay NAS server for small offices and home use, specifically designed to provide a solution for file storage and sharing with data protection for your home environment with low power consumption, quiet operation and reliability.The DS413j is an external drive designed for laptops, PCs, and Macs. It supports HDD drive types and has four bays with a storage capacity of 16 TB. This product is part of the DiskStation product line and falls under the Network Attached Storage, Hard Drives, and Drives, Storage & Blank Media categories. Some notable features of this product include cloud storage, an in-built media server, removable design, standalone operation, low noise level, USB port, indication light, and auto power on/off. The interface for this device includes USB and Ethernet connectivity. This device is a great option for those looking for a high-capacity external drive with various features.Included and installed are two 3 TB Western Digital NAS rated drives for a total of 6 TB of storage. This NAS drive supports RAID configuration options to ensure your data stays safe, even if a drive fails.