Synology DiskStation DS1520+, made for a variety of server roles such as backup, file storage, email servers, & domain controllers!
Form Factor: NAS Tower Server
Internal File System Format: EXT4, Btrfs
Ports: 4 x RJ-45 1GbE LAN Ports (with Link Aggregation / Failover support); 2 x USB 3.2 Ports; 2 x eSATA Ports
Processor: Celeron J4125 4-Core 2.0GHz CPU
Memory: 8GB DDR4 non-ECC Memory
M.2 Storage: 1TB (2 x 500GB) M.2 NVMe Solid State Drives for Ultra-Fast Storage
File Storage: 80TB (5 x 16TB) SATA 3.5" HDDs for High-Capacity Storage
Power: Single Power Supply
Operating System: Synology DSM Software
Features: Cache Acceleration, Virtual Machine Manager, Security Advisor, AES 256-bit Encryption, 2 Factor Authentication, Surveillance Station Suite, 4K Multimedia Server role, Desktop Backup, Hyper Backup, Snapshot Replication, Synology Drive, & many more Comes in a sealed box.
Hard drives & memory upgrades included separately NOT installed, installation required.