[4) 1TB M.2 |  4TB SSD]

Synology DiskStation DS720+, made for a variety of server roles such as backup, file storage, email servers, and domain controllers!
Form Factor: NAS Tower Server
Internal File System Format: EXT4, Btrfs
Ports: 2 x RJ-45 1GbE LAN Port (with Link Aggregation / Failover support); 3 x USB 3.0 Port; 1 x eSATA Port
Processor: Celeron J4125 Quad-Core 2.0GHz 4MB CPU, up to 2.7GHz Burst
Memory: 6GB DDR4 PC4-21300 2666MHz SO-DIMMs
M.2 Storage: 1TB (2 x 500GB) M.2 NVMe Solid State Drives for Ultra Fast Storage
File Storage: 8TB (2 x 4TB) 6Gb/s SATA 3.5 Inch HDDs for High Capacity Storage
Power: Single Power Supply
Operating System: Synology DSM Software
Operating System Features: Security Advisor, AES 256-bit Encryption, 2 Factor Authentication, Surveillance Station Suite, 4K Multimedia Server role, Desktop Backup, Hyper Backup, Snapshot Replication, Synology Drive, and many more
NAS chassis comes in a sealed box.
Hard drives and memory upgrades included separately NOT installed, installation required.