Synology RackStation 4 Bay RS1619xs+ 4-bay (up to 16-bay), Quad Core 2.2 GHz (turbo to 2.7GHz), 8GB RAM (up to 64GB), 10GbE/25GbE NIC support (optional) , Redundant power, M.2 x 2

• 4 x 3.5/2.5" SATA HDD/SSD Drive Bays
• Intel Xeon D-1527 quad-core 2.2GHz, Turbo Boost up to 2.7GHz
  
• 8GB of DDR4 RAM
• 2 x M.2 2280 NVMe
  
• 4 x Gigabit Ethernet Ports
• 2 x USB 3.2 Gen 1 Type-A | 1 x eSATA
• RAID 0, 1, 5, 6, 10,F1 Basic, Hybrid, JBOD
• Up to 736 MB/s Reads & 796 MB/s Writes
• AES-NI Encryption
• Dual M.2 2280 NVMe SSD Slots for Caching
• Synology DiskStation Manager OS
• Dispatch After 4 days