Synology DiskStation DS120j is the perfect entry-level NAS for home or small business; energy efficient and budget friendly 1-Bay NAS designed to store, share and protect personal data OS Features: Synology Mobile App Integrations, Centralized Backup for Devices, File Access and Sharing via QuickConnect, Comprehensive Built-In Security Tools, Complete Multimedia Management and Streaming Tools Ports: RJ-45 1GbE LAN Port; 2 x USB 2.0 Port; Memory: 512MB DDR3L Memory; HDD Storage: 4TB 7.2K RPM 6Gb/s SATA HDD for High Capacity Storage; Processor: Marvell Armada 3700 88F3720 Dual-Core 800MHz CPU, Up to 1.2GHz Boost Synology NAS chassis comes in a sealed box Hard drives and memory upgrades included separately NOT installed, installation required