Synology DS920+ 4 Bay NAS (4GB) 
CPU Model: Intel Celeron J3453
- CPU Frequency: Quad Core 1.5 burst up to 2.3 GHz
- Ram: 4GB DDR3L (Can Up to 8GB (2x4GB)
- Drive Bays: 4
- Maximum Drive Bays with Expansion Unit: 9
- M.2 Drive Slots: 2
- Maximum Internal Raw Capacity: 40 TB (10 TB drive x 4) (Capacity may vary by RAID types)
- Maximum Raw Capacity with Expansion Units: 90 TB (10 TB drive x 9) (Capacity may vary by RAID types)
- Maximum Single Volume Size: 108 TB
- RJ-45 1GbE LAN Port: 2 (with Link Aggregation / Failover support)
- USB 3.0 Port: 2
- eSATA Port: 1
- Warranty : 3years

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